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Tuna-Stuffed Mushrooms

Tuna-Stuffed Mushrooms pair juicy baked button caps with a rich, cheesy tuna filling accented by sweet relish and a hint of onion. The Swiss melts into the mixture for a savory, slightly tangy bite that’s perfect for sharing. Serve these warm as a party appetizer or a satisfying snack straight from the oven.

  • Prep15 mins
  • Cook20 mins
  • Serves10
  • DifficultyEasy
Tuna-Stuffed Mushrooms
  1. 1

    Preheat the oven to 350 degrees F (175 degrees C).

  2. 2

    In a large bowl, mix the tuna, Swiss cheese, mayonnaise, sweet relish, dried onion, onion powder, salt, and black pepper. Fill the mushroom caps with the tuna mixture; arrange them on a baking sheet, filled side up.

  3. 3

    Bake in the preheated oven until the mushrooms are soft and start to release their juices, 20 to 25 minutes.