Gluten-Free Cheesy Wild Mushroom Panini

Prep: 15 minCook: 25 min4 servingsmedium
Cheesy Wild Mushroom Panini with Pesto Mayo

A hearty grilled sandwich combining three varieties of mushrooms with melted mozzarella and creamy pesto mayonnaise on crispy baguette. The mushrooms are slowly cooked until golden and their liquid evaporates, concentrating their earthy flavors. Perfect for lunch or a casual dinner when you want something satisfying yet sophisticated. The pesto mayo adds brightness that balances the rich cheese and savory mushrooms.

Ingredients

4 servings
  • 4 baguettes
    ciabatta rolls1:1

    similar texture

  • 1 ⅓ cups mozzarella cheese, divided
    provolone1:1vegetariandairy-free

    sharper flavor

    Full guide →
  • 2 tablespoons olive oil
  • 1 box white button mushrooms, sliced
  • 1 box crimini mushrooms, sliced
  • 2 portobello caps, sliced
  • 1 teaspoon kosher salt
  • 1 teaspoon dried basil
  • 1 teaspoon dried oregano
  • ¼ teaspoon pepper
  • 2 teaspoons red wine vinegar
  • ½ cup mayonnaise
    avocado0.5:1dairy-freevegan

    different texture

    Full guide →
  • 2 tablespoons prepared pesto
    sun-dried tomato spread1:1

    different flavor profile

    Full guide →

Instructions

  1. 1

    Heat oil in a large frying pan over medium heat

  2. 2

    Add mushrooms and cook, stirring occasionally, until cooked through and browned with liquid evaporated

  3. 3

    Combine mayo and pesto in a small container and stir until combined

  4. 4

    Cut baguette in half and spread pesto mayo on each side

  5. 5

    Spread cheese on one half of baguette

  6. 6

    Top with mushrooms and second half of baguette

  7. 7

    Grill in panini maker or sandwich maker until done

  8. 8

    Repeat with remaining sandwiches

Tips

Tip 1

Cook mushrooms until liquid completely evaporates to prevent soggy sandwiches

Tip 2

Press sandwiches firmly in panini maker for better cheese melting and crispy exterior

Tip 3

Make extra pesto mayo - it keeps well and works great as a dip

Good to Know

Storage

Refrigerate assembled but ungrilled sandwiches up to 4 hours

Make Ahead

Cook mushrooms up to 2 days ahead, reheat before assembly

Serve With

Serve immediately while bread is crispy and cheese is melted

See pairing guide →

Common Mistakes

Watch

Cook mushrooms completely to avoid soggy bread

Watch

Press sandwiches firmly to ensure even browning

Substitutions

Dairy-Free Swaps

mozzarella cheese
provolone1:1vegetariandairy-free

sharper flavor

Full guide →
mayonnaise
avocado0.5:1dairy-freevegan

different texture

Full guide →

General Alternatives

baguettes
ciabatta rolls1:1

similar texture

pesto
sun-dried tomato spread1:1

different flavor profile

Full guide →
Find more substitutions →

FAQ

Can I use different mushroom varieties?

Yes, any combination of mushrooms works well. Shiitake, oyster, or even wild mushrooms like chanterelles make excellent substitutes for similar cooking times.

What if I don't have a panini maker?

Use a regular skillet with a heavy pot or second pan to press down on the sandwich. Cook 3-4 minutes per side until golden brown.

How long do the cooked mushrooms keep?

Store cooked mushrooms in the refrigerator for up to 3 days. Reheat gently in a pan before using to restore their texture.