Cook the Pasta: Boil macaroni in salted water until al dente. Reserve 125ml of pasta water (it’s liquid gold for sauce texture), then drain and set aside.
Sauté the Veggies: In a large skillet, melt butter over medium heat. Add onion, garlic, and bell peppers. Sauté for 4–5 minutes until softened and fragrant.
Brown the Beef: Crumble in the ground beef. Cook for 5–7 minutes, breaking it apart with a wooden spoon. Drain excess fat if needed, then season with salt, pepper, paprika, and chili flakes.
Make It Creamy: Lower the heat. Stir in cream cheese, mozzarella, and cheese slices. Let everything melt together slowly into a silky, luscious sauce. (Tip: Tear cheese slices for quicker melting.)
Bring It All Together: Add cooked macaroni and pour in reserved pasta water. Stir gently for 1–2 minutes until the sauce coats every noodle. Adjust consistency — add more pasta water if thick, or let simmer to tighten it up.
Final Touches: Taste and tweak seasonings. Sprinkle fresh parsley before serving for that final “I actually have my life together” look.