In a large pot, bring salted water to boil. Add rotini and cook according to package instructions until al dente. Drain and set aside.

In a large skillet over medium heat, heat olive oil. Add ground beef, breaking it up with a spatula. Cook until browned and no longer pink, roughly 5-7 minutes.

Drain any excess fat for a cleaner finish.

Stir in chopped onion, bell peppers, and garlic. Cook for 4-5 minutes, or until onions are translucent.

The kitchen should smell heavenly at this point!

Sprinkle in the Cajun seasoning, salt, and pepper. Stir well to coat the meat and veggies and cook for another minute.

Pour in the can of diced tomatoes (with juice) and beef broth. Bring to a simmer, stirring occasionally for about 5-7 minutes.

Gently fold in the cooked rotini and shredded cheese. Stir until the cheese melts and everything is well combined.

Don’t rush this step; let the cheese melt for a creamy texture!

Enjoy hot, garnished with fresh herbs if desired!