1. Combine eggs, butter, flour, and baking powder. Stir in cottage cheese and Monterrey Jack cheese. 2. Pour into a well greased pan. Bake in oven for 10 minutes at 400 degrees. 3. Turn oven to 370 degrees, place sliced tomatoes on top of mixture, and bake an additional 20 minutes. 4. Serve with salsa and sour cream.