Thanksgiving Mushroom Recipes: Easy Savory Holiday Side Dishes |Warm Mushroom Casseroles

Mushrooms have a useful talent at Thanksgiving: they can make a side dish taste rich and savory without automatically making it heavy.

That’s especially valuable on a table already crowded with mashed potatoes, stuffing, gravy, casseroles, and rolls.

A simple skillet of garlic butter mushrooms can sit beside turkey without competing with it. Mushrooms can also become creamy, crispy, stuffed, or roasted—and they’re one of the easiest ingredients to give a distinctly autumn flavor with herbs like thyme, sage, and rosemary.

For this collection, we’re making five different Thanksgiving mushroom sides, each with its own personality.

Choose one based on the rest of your menu.

Or make two.

Mushrooms rarely survive long enough to become leftovers anyway.

Start Simple: Garlic Butter Herb Mushrooms

If you’re already managing several complicated Thanksgiving dishes, this is the mushroom recipe I’d choose.

One skillet. About 20 minutes. No oven.

For 6 to 8 servings:

2 pounds cremini or button mushrooms
3 tablespoons butter
1 tablespoon olive oil
4 garlic cloves, minced
1 teaspoon fresh thyme leaves
1 teaspoon chopped fresh rosemary
1 tablespoon chopped parsley
Salt
Freshly ground black pepper
1 teaspoon fresh lemon juice

Clean the mushrooms and trim the stems as needed.

Leave smaller mushrooms whole and halve or quarter larger ones so everything cooks relatively evenly.

Heat a large skillet over medium-high heat.

Add olive oil and 2 tablespoons of butter.

Once hot, add the mushrooms.

Here’s the important part:

Don’t crowd them.

If your skillet isn’t large enough, cook the mushrooms in two batches.

Crowded mushrooms release water and steam each other instead of developing those beautiful browned edges we’re after.

Let them cook for a few minutes before stirring.

Continue cooking until browned and tender.

Reduce the heat and add the remaining butter, garlic, thyme, and rosemary.

Cook for another minute or two.

Season with salt and black pepper, then finish with parsley and a tiny squeeze of lemon.

The lemon shouldn’t make them taste lemony. It simply cuts through the butter and wakes everything up.

Serve immediately.

This is particularly good with roast turkey, beef, or pork.

When You Want Something Creamy: Parmesan Mushroom Gratin

Thanksgiving is one of the few occasions when turning vegetables into bubbling cheese-covered casseroles seems not only acceptable but expected.

This mushroom gratin delivers.

You’ll need:

2 pounds cremini mushrooms, sliced
2 tablespoons butter
1 tablespoon olive oil
1 small shallot, finely chopped
3 garlic cloves, minced
3/4 cup heavy cream
1/2 cup grated Parmesan
3/4 cup shredded Gruyère
1 teaspoon fresh thyme
Salt and black pepper

For the topping:

1/2 cup panko breadcrumbs
2 tablespoons melted butter
1/4 cup Parmesan

Heat the oven to 375°F.

Heat butter and olive oil in a large skillet.

Cook the mushrooms over medium-high heat until they’ve released their moisture and begun browning.

This step matters.

If you put raw mushrooms directly into the casserole with cream, they’ll release liquid while baking and you may end up with mushroom soup rather than gratin.

Once browned, add the shallot.

Cook until softened.

Add garlic and thyme and cook briefly.

Pour in the cream and let everything simmer gently for several minutes.

Stir in Parmesan.

Taste and season.

Transfer the mushroom mixture to a baking dish and scatter Gruyère over the top.

Mix panko with melted butter and Parmesan, then sprinkle it over the cheese.

Bake for approximately 20 to 25 minutes, until bubbling and golden.

Let it stand for a few minutes before serving.

It’s rich, so you don’t need enormous portions.

Particularly when the plate already contains stuffing, potatoes, gravy, and three other relatives of butter.

The Crispy Option: Parmesan Roasted Mushrooms

Not every Thanksgiving mushroom needs cream sauce.

These are roasted at high heat until browned around the edges, then finished with Parmesan and herbs.

You’ll need:

2 pounds mushrooms
3 tablespoons olive oil
3 garlic cloves, minced
1/2 teaspoon onion powder
1 teaspoon fresh thyme
1/2 teaspoon black pepper
Salt
1/2 cup grated Parmesan
2 tablespoons chopped parsley

Heat the oven to 425°F.

Clean and halve the mushrooms.

Very small mushrooms can remain whole.

Pat them dry.

Moisture is the enemy of browning here.

Toss the mushrooms with olive oil, garlic, onion powder, thyme, black pepper, and a moderate amount of salt.

Spread them across a large sheet pan.

Again, give them room.

Roast for approximately 15 minutes.

Remove the pan, turn the mushrooms, and return them to the oven for another 10 to 15 minutes, until deeply browned.

During the final few minutes, sprinkle Parmesan over the mushrooms.

Return them to the oven just long enough for the cheese to melt and develop a little color.

Finish with parsley.

These work especially well when the rest of your Thanksgiving menu is creamy.

You get all that savory mushroom flavor without introducing another casserole dish full of dairy.

A Thanksgiving Appetizer That Can Double as a Side

Sausage and Herb Stuffed Mushrooms

Stuffed mushrooms usually appear with the appetizers.

I don’t see why they need to stay there.

Make them slightly larger and they become an excellent Thanksgiving side—especially if you’re serving dinner buffet-style.

You’ll need:

24 medium-large cremini or white mushrooms
1/2 pound mild Italian sausage
1 tablespoon olive oil
1 small shallot, finely chopped
2 garlic cloves, minced
1/2 cup breadcrumbs
1/3 cup grated Parmesan
3 tablespoons cream cheese
1 teaspoon fresh sage, finely chopped
1 teaspoon fresh thyme
2 tablespoons parsley
Black pepper

Heat the oven to 375°F.

Remove the mushroom stems and chop them finely.

Arrange the caps open-side up on a lined baking sheet.

Cook the sausage thoroughly in a skillet, breaking it into small crumbles.

Transfer it to a bowl.

Add olive oil if necessary, then sauté the chopped mushroom stems and shallot.

Once most of their moisture has cooked away, add garlic, sage, and thyme.

Cook briefly.

Combine this mixture with the sausage, breadcrumbs, Parmesan, cream cheese, parsley, and black pepper.

Spoon the filling generously into the mushroom caps.

Bake for approximately 20 to 25 minutes, until the mushrooms are tender and the filling is browned.

Serve warm.

If you’re using sausage, make sure the filling is thoroughly cooked before serving.

You can also make these vegetarian by leaving out the sausage and increasing the chopped mushroom stems, breadcrumbs, cheese, and perhaps adding finely chopped walnuts.

Just label the nut-containing version clearly for guests with allergies.

The One That Tastes Like Thanksgiving: Sage Mushroom Wild Rice

This is the recipe I’d choose if I wanted mushrooms to become a more substantial part of dinner.

It works as a side for turkey, but it’s hearty enough that vegetarian guests can actually put something meaningful on their plates too.

For 8 servings:

1 1/2 cups wild rice blend
Broth or water according to package instructions
1 pound cremini mushrooms, sliced
2 tablespoons butter
1 tablespoon olive oil
1 small onion, diced
2 celery stalks, diced
2 garlic cloves, minced
1 teaspoon chopped fresh sage
1 teaspoon fresh thyme
1/2 cup dried cranberries
1/2 cup toasted pecans
2 tablespoons chopped parsley
Salt and black pepper

Cook the rice according to the package directions.

While that’s happening, heat butter and olive oil in a large skillet.

Add the mushrooms and cook until deeply browned.

Remove them temporarily if necessary.

Add onion and celery and cook until softened.

Stir in garlic, sage, and thyme.

Return the mushrooms to the skillet.

Combine everything with the cooked rice.

Fold in dried cranberries.

Taste and adjust the salt and pepper.

Just before serving, add toasted pecans and parsley.

The cranberries bring a little sweetness.

The pecans add crunch.

And mushrooms provide enough savory flavor that the rice doesn’t feel like an afterthought sitting beside the stuffing.

For vegetarian guests, use vegetable broth rather than chicken broth.

Which Mushrooms Are Best for Thanksgiving?

You don’t need an expensive assortment.

Cremini mushrooms are probably my favorite all-purpose choice. They have more flavor than basic white mushrooms but remain inexpensive and easy to find.

White button mushrooms work perfectly well too, particularly for stuffed mushrooms.

Shiitake mushrooms bring a deeper flavor and are excellent mixed into rice or stuffing.

Portobello mushrooms are useful when you want something substantial. Sliced portobellos can be roasted or sautéed, while whole caps can become a vegetarian main dish.

For a more special Thanksgiving side, combine two or three varieties.

Cremini plus shiitake is a particularly easy combination.

But don’t feel obligated to buy six varieties because the package says “gourmet mushroom medley.”

Thanksgiving already contains enough logistical challenges.

The Biggest Mushroom Mistake

It’s usually water.

Mushrooms contain a lot of moisture.

If you crowd a pan, they’ll release that moisture faster than it can evaporate.

Instead of browning, they’ll simmer.

Use a wide skillet.

Cook in batches when necessary.

Keep the heat reasonably high.

And don’t stir constantly.

Give the mushrooms enough contact with the hot surface to actually develop color.

The difference between pale mushrooms and deeply browned mushrooms is enormous.

The ingredient list hasn’t changed.

You’ve simply given the mushrooms enough space to behave themselves.

Should You Wash Mushrooms?

You can clean mushrooms with a slightly damp towel or brush away visible dirt.

If they need rinsing, rinse them briefly rather than soaking them, then dry them thoroughly before cooking.

The important thing for roasting and sautéing is getting rid of excess surface moisture.

Wet mushrooms entering a crowded pan have approximately zero interest in becoming golden brown.

Make-Ahead Mushroom Sides

Mushrooms are at their absolute best shortly after cooking, but Thanksgiving demands compromise.

The Mushroom Gratin is the easiest recipe here to prepare ahead.

Cook the mushroom filling, assemble the casserole, cover, and refrigerate. Add the breadcrumb topping near baking time so it stays crisp.

The Wild Rice with Mushrooms can also be prepared ahead. I’d save the toasted pecans and parsley until reheating and serving.

Stuffed mushrooms can be assembled earlier in the day, refrigerated, and baked closer to dinner.

For simple sautéed mushrooms, I’d prepare all the ingredients ahead but cook the mushrooms shortly before serving.

They only need about 15 to 20 minutes anyway.

That’s faster than trying to convince reheated mushrooms they are still freshly sautéed.

What Goes With Thanksgiving Mushrooms?

Mushrooms pair beautifully with most traditional Thanksgiving foods.

They’re especially good alongside:

Roast turkey
Thanksgiving ham
Roast beef
Mashed potatoes
Stuffing
Green beans
Brussels sprouts
Sweet potatoes
Dinner rolls

Mushrooms also have a natural relationship with gravy.

If you’re making mushroom gravy, sauté the mushrooms until well browned before adding flour, broth, and other sauce ingredients.

That browning step provides much of the final flavor.

Add Mushrooms to Your Thanksgiving Stuffing

If you already have enough side dishes, you don’t necessarily need another standalone mushroom recipe.

Add mushrooms to your stuffing instead.

Sauté approximately 8 to 12 ounces of chopped mushrooms with onion and celery until the moisture has evaporated and the mushrooms are browned.

Then mix them into your favorite stuffing recipe.

Sage, thyme, parsley, celery, onion, mushroom, and toasted bread belong together.

For even more flavor, combine cremini and shiitake mushrooms.

This is also an easy way to make a vegetarian stuffing feel more substantial—just use vegetable broth and make sure the remaining ingredients fit the diet you’re cooking for.

A Quick Mushroom Gravy

If you’d rather put your mushrooms over the potatoes, turn them into gravy.

Sauté:

12 ounces sliced mushrooms
2 tablespoons butter
1 small shallot

Once browned, add:

2 additional tablespoons butter
3 tablespoons flour

Cook the flour briefly.

Slowly whisk in about:

2 1/2 cups broth

Add thyme, black pepper, and a small splash of Worcestershire sauce if appropriate for your guests.

Simmer until thickened.

Taste before adding salt.

For vegetarian gravy, use vegetable broth and a vegetarian Worcestershire alternative or simply omit it.

Now you’ve solved two Thanksgiving requirements at once.

Mushroom side?

Technically.

Gravy?

Absolutely.

How Much Should You Make?

Mushrooms shrink considerably as they cook.

For a straightforward sautéed or roasted mushroom side, plan roughly 4 ounces of raw mushrooms per person when several other Thanksgiving sides are available.

For 8 guests, around 2 pounds is comfortable.

If mushrooms are one of only a few sides, increase the quantity.

For stuffed mushrooms, I’d make around 2 to 3 per person when they’re being served alongside dinner, depending on their size.

For appetizers, make more.

People are remarkably capable of eating four stuffed mushrooms while claiming they haven’t started dinner yet.

Keeping Mushroom Dishes Safe

Cooked mushroom dishes shouldn’t sit at room temperature indefinitely.

Keep hot dishes at 140°F or above when holding them for service.

Perishable foods generally shouldn’t remain at room temperature for more than 2 hours, or 1 hour when temperatures are above 90°F.

Refrigerate leftovers promptly at 40°F or below.

Most cooked Thanksgiving leftovers are best used within 3 to 4 days.

Reheat leftovers thoroughly to 165°F.

Creamy mushroom dishes should be reheated gently to help prevent the sauce from separating.

Roasted mushrooms can go back into a hot oven briefly to restore some of their texture.

A Few Thanksgiving Mushroom Questions

What is the best mushroom side dish for turkey?

Garlic butter mushrooms are hard to beat because they’re savory without being too heavy. Mushroom wild rice is another excellent choice.

Can mushroom dishes be prepared the day before Thanksgiving?

Some can. Casseroles and wild rice dishes are particularly suitable for advance preparation. Simple sautéed mushrooms are better cooked closer to serving.

What herbs taste best with mushrooms?

Thyme, sage, rosemary, parsley, and chives all pair beautifully with mushrooms.

Can I use frozen mushrooms?

Fresh mushrooms generally give you better texture for roasting and sautéing. Frozen mushrooms can work in soups, sauces, and some casseroles where texture is less important.

How do I stop mushrooms from becoming watery?

Use a wide hot pan, avoid overcrowding, and give released moisture enough time to evaporate before adding creamy ingredients.

Are mushrooms good for vegetarian Thanksgiving dishes?

Definitely. Mushroom wild rice, mushroom stuffing, mushroom gravy, stuffed portobellos, and savory mushroom tarts can all help create a more substantial vegetarian holiday meal.