Try this homemade Brown Rice Casserole recipe the whole family will love. Made with margarine, onion, mushrooms and rice. Easy step-by-step instructions…
This Brown Rice Casserole relies on simple, everyday ingredients such as margarine, medium chopped onion, small can mushrooms and rice (uncooked comet rice). It comes together quickly and makes 4 servings, at about 389 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