Cook tortellini in salted water until al dente, about 6–8 minutes. Drain and set aside.
Season steak cubes with salt, pepper, garlic powder, and smoked paprika. Sear in olive oil over medium-high heat until browned. Remove and set aside.
Steam or roast carrots until tender. Sauté bell peppers in the same skillet for 3–4 minutes until slightly softened.
Melt butter in the skillet, add garlic, and cook for 1 minute. Stir in heavy cream and beef broth. Simmer 3–4 minutes, then add parmesan until creamy.
Add steak, carrots, bell peppers, and tortellini back into the skillet. Toss gently to coat everything in the sauce.
Garnish with parsley and red pepper flakes before serving.
