Tuna Swiss Casserole — Seafood recipe

Tuna Swiss Casserole

Eats Now Editorial Team  · 1023 kcal  · Seafood

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Try this homemade Tuna Swiss Casserole recipe the whole family will love. Made with noodles, margarine, parmesan cheese and onion. Easy step-by-step ins…

This Tuna Swiss Casserole relies on simple, everyday ingredients such as dry spaghetti noodles, margarine, parmesan cheese, grated and large onion, finely chopped. It comes together quickly and makes 4 servings, at about 1023 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

Serves 4 Seafood
Servings: persons

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