In a skillet capable of holding 2 cups of water, begin browning the meat. Add onions and bell peppers when the meat is halfway cooked.
Once the meat is no longer pink, use a paper towel to absorb some grease. Stir in garlic cloves and taco seasoning, cooking for an additional 2 minutes.
Introduce tomatoes and water/broth, bringing the mixture to a low simmer. Taste and adjust seasonings as needed.
Add pasta to the skillet, gently pressing it down to submerge it in the liquid. Cover the skillet with a lid and let it cook for 8-10 minutes, stirring halfway through, until the pasta is tender.
Once the pasta is cooked, sprinkle the grated cheddar cheese on top. Cover with the lid for 1-2 minutes to allow the cheese to melt.
Serve and enjoy your delicious Taco Pasta!