Ground Beef Casserole–an easy Instant Pot dinner with ground beef, macaroni, Rotel tomatoes, and corn in a lightly spiced, cheesy tomato sauce. Pin this recipe for later! Ground Beef Casserole This was an easy one to make and fun to eat! My friend Ryan was here, so I scooped him up a big bowl and […] The post Ground Beef Casserole appeared first on 365 Days of Slow Cooking and Pressure Cooking.