1 can (10-1/2 ounces) condensed beef consomme, undiluted
1/3 cup all-purpose flour
2 tablespoons tomato paste
1-1/2 cups sour cream
Hot cooked noodles
In a large skillet, cook beef, salt and pepper over medium heat until no longer pink, breaking into crumbles, 6-8 minutes; drain. Transfer meat to a 3- or 4-qt. slow cooker.
In same skillet, heat butter over medium-high heat. Add mushrooms and onions; cook and stir until onions are tender and mushrooms have released their liquid and begin to brown, 6-8 minutes. Add garlic; cook 1 minute longer. Transfer to slow cooker.
In a small bowl, whisk together consomme, flour and tomato paste. Pour over meat mixture; stir to combine. Cook, covered, on low until thickened, 4-6 hours. Stir in sour cream. Cook, covered, until heated through, 15-30 minutes longer. Serve with noodles.
Test Kitchen tips
Beef consomme is made from flavorful roasted bones, vegetables and herbs. You can purchase canned beef consomme in the soup aisle of your grocery store.