01 -
Heat a large, deep skillet over medium-high heat. Add the diced onion, bell pepper, and ground beef. Cook while breaking the meat apart, until browned and vegetables have softened, about 6–8 minutes. Drain excess grease.
02 -
Sprinkle taco seasoning over the cooked meat and vegetables. Stir thoroughly to coat all contents and develop flavor, about 1 minute.
03 -
Add diced tomatoes with chilies, tomato sauce, beef broth, and whole milk to the skillet. Stir until combined, then add shell pasta, mixing so the pasta is well submerged.
04 -
Bring skillet contents to a gentle simmer. Reduce heat to low, cover, and cook for 10–15 minutes, stirring every few minutes, until pasta is just al dente and most of the liquid is absorbed.
05 -
Remove skillet from heat. Immediately stir in grated cheddar cheese until fully melted and sauce is creamy.
06 -
Portion straight from the skillet while hot. Garnish as desired and serve immediately for best texture.