
Slow cooker cube steak is cooked low and slow in a rich, homemade gravy until fork-tender. With no canned soup needed, it’s a hearty, comforting dinner that tastes like Sunday supper—any night of the week.
Season steak with salt, pepper, and garlic powder on both sides.
Heat olive oil in a large skillet over medium-high heat. Add steaks and brown for 1-2 minutes on each side. Remove from pan and transfer to a 6-quart slow cooker. You may need to do this step in batches. Wipe pan with a paper towel to remove excess grease.
Add onion and 1 cup beef broth to crockpot.
Melt butter in same pan over medium heat. Add mushrooms and cook for 2-3 minutes. Add garlic and flour and cook for 2-3 minutes, or until flour has cooked down and lightly browned.
Pour in remaining ¾ cup beef broth and use a whisk or spatula to scrape the brown bits off the bottom of the pan.
Add cream, Worcestershire sauce, and Italian seasoning. Simmer for 1-2 minutes, or until it has thickened. Carefully pour gravy over steaks and onions. Cover crockpot with lid and cook on LOW for 6-8 hours, or on HIGH for 4 hours.
Once time is up, remove steaks from crockpot and set aside. Whisk together cornstarch and cold water in a small bowl until smooth. Stir slurry into the crockpot and cook on high with the lid off for 5-10 minutes, or until gravy thickens.
Garnish with fresh chopped parsley, if desired. Serve immediately.