slow cooker round steak made easy

Ingredients

• 1 - 3# round steak, cut into 4" squares or strips
• 1 cup chopped bell pepper (optional)
• 1 can 13-oz. can mushroom stems & pieces, drained
• 1 package dry onion soup mix
• 1/2 package brown gravy mix (only use half the packet)
• 1 can 16 oz. can tomatoes with basil, garlic, oregano