Try this homemade Stuffed Portobella Mushrooms With Tuna & Swiss Cheese recipe the whole family will love. Made with portabella mushrooms, brine, mayonn…
This Stuffed Portobella Mushrooms With Tuna & Swiss Cheese relies on simple, everyday ingredients such as large portabella mushrooms, tuna in brine, drained, mayonnaise and swiss cheese, grated. It comes together quickly and makes 4 servings, at about 188 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026