Slow Cooker Flat Iron Steak Dinner: A whole flat iron steak cooked in the slow cooker makes an easy dinner for busy weeknights, but it still tastes like you spent all day cooking it with care. This kind of hearty steak-and-gravy meal has always had a spot on Midwestern dinner tables, where just a few pantry items and a trusty slow cooker turn a simple, budget-friendly cut of meat into a soft, flavorful dinner that pulls everyone into the kitchen the moment it’s ready.
Serve this steak dinner over creamy mashed potatoes, buttery egg noodles, or fluffy white rice so you don’t waste a drop of that tasty gravy. A side of green beans, glazed carrots, or sweet corn goes great with it, and if you set out a basket of warm dinner rolls, don’t expect any leftovers in the pot.
This easy slow cooker steak dinner turns one whole flat iron steak into a tender, juicy meal with barely any prep work. Just five simple ingredients cook low and slow into soft meat, creamy potatoes, and rich gravy. It’s a warm, filling dinner that’s perfect for busy nights when you still want real comfort food.
Servings: 4 to 6
Ingredients
- 1 whole flat iron steak, about 1½ to 2 pounds
- 1 packet (about 28g) dry onion soup mix
- 1 can cream of mushroom soup, 10½ ounces
- ½ cup beef broth
- 1 pound baby potatoes
Slow Cooker Flat Iron Steak Dinner: Directions
- Get the slow cooker ready. If you’d like an easier cleanup later, lightly spray or grease the inside of your slow cooker insert. Place the whole flat iron steak flat in the bottom of the pot. Arrange the baby potatoes around the sides of the steak so they can cook evenly in the sauce.
- Mix the sauce. In a small bowl, stir together the onion soup mix, cream of mushroom soup, and beef broth. Keep stirring until the mixture turns smooth with no dry lumps left. Pour this sauce evenly over the top of the steak and potatoes, making sure it spreads out to cover as much as possible.
- Cook it low and slow. Put the lid on the slow cooker and set it to cook on low for 6 to 8 hours. You’ll know it’s done when the steak feels very tender and falls apart easily with a fork, and the potatoes are soft all the way through. If your slow cooker tends to run hot, start checking on it around the 6-hour mark so nothing overcooks.
- Slice and soak up the gravy. Carefully lift the steak out and place it on a cutting board. Slice it against the grain into thin pieces, which helps keep the meat tender. Put the sliced steak back into the slow cooker for a few minutes so it can soak up more of that rich gravy before serving.
- Serve it warm. Spoon the steak slices and potatoes onto plates, then ladle plenty of the warm gravy over the top. Serve right away while everything is hot and full of flavor.