A simple Slow Cooker Summer Beef Casserole that brings the ease and soul-soothing goodness of a classic casserole with a bright, summery twist. Your slow cooker does most of the work, making it perfect for effortless weeknight dinners or lazy weekend feasting.
Searing the beef first is recommended for best flavor and texture. To thicken the sauce more, make a quick slurry of 1 tbsp cornstarch mixed with 2 tbsp cold water; stir into the hot casserole during the last 30 minutes or after cooking.