These grilled mushrooms cooked in foil are quick, simple, and ideal when you want to avoid turning on the stove. With just three ingredients and about 20 minutes from start to finish, they make a flavorful topping for burgers, a delicious addition to pasta, or a satisfying side on their own.

Whether it’s sweltering outside and you don’t want to heat your kitchen or you simply don’t want another pan to wash, this foil-grilled mushroom method is a great shortcut. Slicing the mushrooms beforehand saves prep time, and grilling in an open foil “pan” encourages better browning than a sealed packet.
I like this approach because I can watch the mushrooms as they cook and achieve better caramelization with the exposed surface. Don’t worry about shaping the foil perfectly — pinch the corners and fold the edges to create a makeshift pan that holds everything in place.
You only need 3 ingredients
(The full measurements are included in the recipe card below.)

- Sliced mushrooms – Pre-sliced cremini or baby bella are convenient and flavorful, but you can slice whole mushrooms if you prefer.
- Neutral oil – Use an oil with a high smoke point such as avocado or canola oil to withstand the grill heat.
- Kosher salt – Adjust the amount to taste; Diamond Crystal is a good choice if you prefer a less intense salt by volume.
What mushrooms are best for grilling?

Most mushrooms grill well. Common choices include white button, cremini, portobello, and baby bella. You can also use oyster, shiitake, chanterelle, porcini, or king trumpet mushrooms depending on availability and flavor preferences.
For this recipe, cremini or baby bella mushrooms are recommended because they’re often sold pre-sliced and offer more flavor than the milder white buttons.
How to grill sliced mushrooms
(See the recipe card below for quantities and a quick reference.)
Prep the foil



Prep the mushrooms


Grill the sliced mushrooms


If you try this grilled baby bella mushrooms recipe, please leave a rating and share how it turned out in the comments below.

Easy Grilled Mushrooms in Foil
Equipment
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Aluminum foil (heavy duty preferred)
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Measuring spoons
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Basting brush
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Tongs
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Oven gloves
Ingredients
- 16 oz sliced mushrooms cremini or baby bella are best
- 2 tbsp mild oil canola or avocado
- 1 tsp kosher salt adjust to taste
Instructions
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Preheat your grill to high, about 475–500°F, so it’s hot when the mushrooms are ready.
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Tear off an 18″ x 20″ piece of heavy-duty foil and position it dull side up. Fold the short ends to strengthen them, then fold the long sides up to form a shallow pan. Pinch the corners if needed.
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Brush the foil pan with oil. Add the sliced mushrooms and sprinkle with kosher salt. Toss gently with tongs so the mushrooms are evenly coated in oil and salt.
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Place the foil pan on the grill and close the lid. Cook for 5 minutes.
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Open the grill, stir the mushrooms, then close the lid and grill another 5–10 minutes, stirring every 3–4 minutes, until the mushrooms are browned and most moisture has evaporated. Thicker slices will take longer.
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Carefully remove the hot foil pan using oven gloves or slide it onto a sheet pan. Serve the mushrooms immediately as a side or a topping.