Bake this irresistible Tuna Cornbread Casserole at home. Made with frozen mixed vegetables, onion, tuna and salt. Easy step-by-step instructions included.
This Tuna Cornbread Casserole relies on simple, everyday ingredients such as instant minced onion, (6 1/2 to 7 oz.) can tuna, salt and pepper. It comes together quickly and makes 4 servings, at about 95 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