Step 2: Layer the Base: Arrange the raw patties in a single, even layer at the bottom of your slow cooker.
Tip: Try not to stack the patties! Keeping them in a single layer ensures they cook evenly and that every square inch of meat gets “basted” by the gravy.
Step 3: Whisk the Sauce: In a medium bowl, whisk together both cans of cream of mushroom soup, the brown gravy packet, and the 1/2 cup of water. The mixture should be thick and uniform.
Step 4: Pour and Coat: Pour the gravy mixture over the beef, using a spatula to spread it so that every patty is completely submerged. This prevents the edges of the meat from drying out.
Step 5: Slow Cook: Cover and cook on LOW for 5/6 hours or on HIGH for 2 1/2 to 3 hours. You’ll know it’s ready when the meat is tender and the gravy has turned a deep, rich brown.
Step 6: Serve: Carefully lift the patties out with a wide spatula to keep them intact. Stir the gravy one last time to incorporate any juices from the meat, then spoon it generously over the patties.