In A Large Skillet, Cook The Beef, Onion, Green Pepper And Garlic In Butter Over Medium Heat For 5-7 Minutes Or Until Vegetables Are Tender And Meat Is No Longer Pink. Add The Broth And Soy Sauce; Bring Mixture To A Boil. Reduce Heat; Simmer, Uncovered, For 1-2 Minutes. In A Small Bowl, Combine Cornstarch And Water Until Smooth; Stir Into Skillet. Bring To A Boil; Cook And Stir For 2 Minutes Or Until Thickened. Stir In The Tomato, Snow Peas And Paprika; Cook 30 Seconds Longer. Serve Over Rice.