Try this homemade Sweet Onion Casserole recipe the whole family will love. Made with Vidalia sweet onions, bell pepper, cooking oil and Cheddar cheese. …
This Sweet Onion Casserole relies on simple, everyday ingredients such as chopped vidalia sweet onions, cooking oil or margarine, grated cheddar cheese and heavy cream. It comes together quickly and makes 4 servings, at about 1351 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