Ingredients

• 2 , 3 ounce
• 2 , 1 ounce
• 2 tablespoons mayonnaise
• 1.5 teaspoons sweet pickle relish
• 0.25 teaspoons dried minced onion
• 0.25 teaspoons onion powder
• salt and ground black pepper to taste
• 1 , 8 ounce

Instructions

1. 1 Preheat the oven to 350 degrees F (175 degrees C).
2. 2 Combine tuna, Swiss cheese, mayonnaise, sweet relish, dried onion, onion powder, salt, and black pepper in a large bowl. Fill mushroom caps with tuna mixture; place on a baking sheet, filled-side up.
3. 3 Bake in the preheated oven until mushrooms are soft and begin to give up their juices, 20 to 25 minutes.

Nutrition per serving