Cheesy Enchilada Stuffed Peppers

large bell peppers1 lb lean ground beef1 (1 ounce) packet Old El Paso Taco Seasoning1/2 large onion, diced1 (4.5 ounce) can Old EL Paso green chiles1/4 cup Old El Paso Red Enchilada Sauce, Medium2 cups Mexican blend shredded cheese