Try this homemade Lucy's Tuna Casserole recipe the whole family will love. Made with mushroom soup, milk, tuna and onion. Easy step-by-step instructions…
This Lucy's Tuna Casserole relies on simple, everyday ingredients such as mushroom soup, soup can lowfat milk, lg. can tuna and sm. onion, minced. It comes together quickly and makes 4 servings, at about 69 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