Begin by cooking your rigatoni pasta according to the package directions until it's perfectly al dente. Drain it well and set aside.
While the pasta simmers, warm a large skillet over medium-high heat. Add the olive oil, then toss in the chopped onion and sauté for 4-5 minutes until it becomes soft and translucent. Stir in the minced garlic for just another 30 seconds until fragrant.
Next, add the lean chicken mince to the skillet, along with the Italian seasoning, red pepper flakes (if you like a little kick), and a sprinkle of salt and pepper. Use a spatula to gently break up the chicken, coating it evenly with the spices, and cook until it's fully browned and cooked through, which should take about 6-8 minutes.
While the chicken cooks, combine the marinara sauce and cottage cheese in a blender. Blend until the mixture is completely smooth and wonderfully creamy – this healthy hack adds richness without heavy cream!
Once the chicken is fully cooked, pour the creamy marinara-cottage cheese blend into the skillet. Add the cooked rigatoni pasta and stir everything together gently until all the ingredients are well combined and heated through, about 2-3 minutes.
Serve this delicious and healthy pasta hot, garnished with a generous sprinkle of grated Parmesan cheese and fresh basil for a vibrant finish.