3 slow cooker hearty steak Recipes

boneless beef round steak, red potato , cut into 1/4-inch slices (4cups), celery ribs, sliced (1cup), carrots, sliced (1cup), onion, chopped (1/2cup), garlic cloves, finely chopped, beef bouillon granules, pepper, beef broth, green giant sliced mushrooms, undrained, water, all-purpose flour