Preheat An Outdoor Grill For Medium-High Heat, And Lightly Oil The Grate. Mix The Ground Beef, Sausage, Onion, Chile Pepper, Garlic, Muenster Cheese, Egg, Worcestershire Sauce, And Chili Powder In A Mixing Bowl Until Evenly Combined. Season To Taste With Salt And Pepper And Mix Again. Form The Meat Mixture Into 8 Patties. Cook On The Preheated Grill Until The Burgers Are No Longer Pink In The Center, About 7 Minutes Per Side. An Instant-Read Thermometer Inserted Into The Center Should Read 160 Degrees F (70 Degrees C).