Heat the olive oil in a 10-inch skillet over medium-high heat. Add the onions and peppers and cook, stirring occasionally for 4 minutes until tender.
Add chopped garlic and tomato paste and cook, stirring frequently for 1 minute.
Add the ground beef to the pan breaking up the ground beef as it cooks. Cook, stirring occasionally until meat is no longer pink and is starting to brown, 5 minutes.
Pour in the broth, beans, cumin, salt, and chili powder and bring to a boil. Reduce the heat to medium-low, add the pasta, and cover the pot with a lid.
Continue cooking, stirring occasionally for 15 minutes, or until the pasta is tender.
Transfer to a bowl, top with Parmesan cheese, and enjoy immediately.
Notes
Expert Tips
Read through the entire recipe before beginning. This easy chili mac skillet recipe comes together quickly. Be sure to read through the recipe and the Ingredient Notes and gather your ingredients before starting.
Drain the fat: If you're using ground beef with a higher fat content, you will need to drain the fat once the beef has browned.
Add some heat: If you like chili with a bit of a kick, add chopped jalapeños or dried chili pepper flakes.
Use extra cheese: Many people love cheesy chili mac so feel free to stir in a handful of shredded cheddar or pepper jack cheese.
Add a topping: Consider topping your dish with a layer of crushed tortilla chips for a nice crunch or a dollop of sour cream and freshly chopped green onions.