01 -
Set your oven to 375°F to get it warm.
02 -
Follow the cooking directions on the box for al dente shells. Once done, drain and put them aside.
03 -
Heat a big pan with olive oil on medium. Toss in the chopped onion and green pepper, letting them soften for about 4–5 minutes.
04 -
Add the ground beef, garlic powder, pepper, and salt to the pan. Cook it til browned, breaking it into small pieces as you go. Drain the fat and take it off the heat.
05 -
Mix 1/2 cup each of cheddar and mozzarella into the cooked beef. Let the mix cool before handling.
06 -
Spoon the beef and cheese mixture into each shell you cooked earlier.
07 -
Pour half the cheese sauce in the bottom of a 9x13 dish. Put the filled shells on top of it.
08 -
Spread the rest of the cheese sauce over the pasta shells. Sprinkle with the rest of the shredded cheeses.
09 -
Cover the dish with foil. Bake for 20 minutes, then take the foil off and bake for 10 more until it’s golden and bubbling.
10 -
Let the dish cool for a few minutes before you serve.