Tuna Stuffed Mushroom Caps

Prep: 20 min Cook: 10 min Serves: 4 Cuisine: American

Tender mushroom caps filled with a savory tuna mixture, complemented by crunchy celery and onions, perfect for appetizer platters or light snacks for seafood lovers.

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Ingredients

  • 1 lb. large fresh mushrooms
  • 1/3 cup minced onion
  • 1 can tuna
  • 1/4 cup butter
  • 1/2 cup minced celery
  • mayonnaise or salad dressing

Instructions

  1. Wash the mushrooms and carefully remove the stems.
  2. Chop the mushroom stems and set aside.
  3. Melt 1 tablespoon of butter in a frying pan and sauté the chopped stems until tender. Cool.
  4. Drain the tuna and break into small pieces in a bowl using a fork.
  5. Mix the tuna with the minced onion, minced celery, and cooked mushroom stems.
  6. Add mayonnaise or salad dressing until the mixture holds together but is not loose.
  7. Stuff the mushroom caps with the mixture and chill before serving.

Tips & Substitutions

For a creamier filling, consider adding a bit of cream cheese or Greek yogurt to the mixture. If you're short on time, you can substitute canned chicken for tuna. Chopped bell peppers or jalapeños can add a nice crunch and spice. Make sure to clean the mushrooms well and dry them before stuffing to prevent excess moisture.

Serving Suggestions

These tuna stuffed mushroom caps make a delightful appetizer or party snack. They pair beautifully with a crisp green salad or a light seafood dish like Crab Casserole Dip. For an elegant presentation, garnish with fresh herbs or a sprinkle of paprika before serving.

Storage & Reheating

Leftover stuffed mushrooms can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, place them on a baking sheet and warm in a preheated oven at 350°F for about 10-15 minutes, until heated through. Avoid microwaving, as it can make the mushrooms soggy.

Nutrition & Diet Analysis (per serving)

Each serving of Tuna Stuffed Mushroom Caps contains roughly 292 calories, with 25g protein, 12g carbohydrates, and 17g fat. It is an excellent source of protein (49% of the Daily Value), and a good source of iron and potassium. Note that it is relatively high in sodium, at 756mg per serving (33% of the Daily Value).

292 kcal 15% DV
Protein Fat Carbs

Macronutrients

Protein 24.6g 49% DV
Total Fat 17.1g 22% DV
Carbs 11.8g 4% DV
Fiber 2.3g 8% DV
Sugar 4g 8% DV

Electrolytes

Sodium 755.5mg 33% DV
Potassium 609.1mg 13% DV
Cholesterol 44.6mg 15% DV

Vitamins & Minerals

Vitamin A 45.3mcg 5% DV
Vitamin C 7.1mg 8% DV
Vitamin D 1.4mcg 7% DV
Calcium 69.4mg 5% DV
Iron 2.7mg 15% DV
Diet fit High-protein Keto-friendly Under 400 cal
Contains Milk Egg Fish

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I use different types of mushrooms for this recipe?

Yes, while large fresh mushrooms like portobellos work best for stuffing, you can also use cremini or button mushrooms. Just ensure they are large enough to hold the filling. Smaller mushrooms can be used as bite-sized appetizers; just adjust the cooking time accordingly.

How can I make these mushrooms vegetarian?

To make this recipe vegetarian, simply replace the tuna with a mixture of cooked quinoa, black beans, or chopped artichokes. You can also add diced veggies like bell peppers or zucchini for extra flavor and texture while keeping the dish hearty.

Can I prepare these mushrooms in advance?

Absolutely! You can prepare the filling a day ahead and store it in the refrigerator. Just stuff the mushrooms right before you plan to serve them. This helps to keep them fresh and prevents them from becoming soggy.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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