This slow cooker 6-ingredient French onion burger steak recipe is my kind of weeknight win: it feels cozy and homemade, but the actual hands-on work is about 10 minutes. You literally layer sliced onions right on top of raw beef patties in the slow cooker, add just four more pantry-friendly ingredients, and let it bubble away into tender, savory burger steaks in a rich French onion-style gravy.
It reminds me of the kind of diner-style Salisbury steak my Midwestern grandma used to make, but with the ease of a set-it-and-forget-it slow cooker and a deeper onion flavor that tastes like you put in way more effort than you actually did.
Slow cooker French onion burger steaks served over mashed potatoes
Slow cooker French onion burger steaks served over mashed potatoes
These French onion burger steaks are perfect spooned over creamy mashed potatoes, buttered egg noodles, or steamed white rice to soak up all that savory onion gravy. On busy nights, I’ll add a simple green salad or microwave-steamed green beans for something fresh and crunchy on the side.
If you want to lean into the French onion theme, serve with toasted baguette slices and a sprinkle of extra shredded cheese at the table. Leftovers make a great meal-prep lunch with roasted vegetables or a side of garlic bread.
