Preheat oven to 350°F. Line a baking sheet with foil and set aside.
In a medium skillet, heat ground beef over medium high heat, crumbling as you cook. If there is extra oil after your beef is fully cooked, drain and return to the heat.
1 lb lean ground beef
Stir in the taco seasoning and stir until well coated. Toss in the onions and allow to cook with the beef.
1 oz. taco seasoning, ½ onion
When the beef is almost cooked through and the onions begin to become translucent, stir in the green chiles and enchilada sauce. Turn off the heat. Set aside.
1 can chopped green chiles, ¼ cup red enchilada sauce
Cut the top off each pepper and hollow out the inside; removing ribs and seeds. Place each pepper on the baking sheet.
4 bell peppers
To stuff each pepper, start with several spoonfuls of beef, then half a cup of cheese, then fill nearly to the top with beef. Top with another ½ cup of cheese if you have enough space, or add as much as you like. Place the top back on the pepper. Repeat with the remaining peppers.
2 cups Mexican blend cheese
Bake for 30-40 minutes or until peppers are tender and cheese is melty.
Serve immediately with sour cream and cilantro if desired. Enjoy!