Bring a large pot of salted water to a boil. Add the penne pasta and cook according to package instructions until al dente. Drain and set aside.
In a large skillet over medium heat, melt the butter. Add the minced garlic and sauté for about 1-2 minutes until fragrant, being careful not to burn it.
Add the diced chicken to the skillet and season with smoked paprika, onion powder, red pepper flakes, salt, and pepper. Cook until the chicken is browned and cooked through, about 6-8 minutes.
Stir in the heavy cream and bring to a gentle simmer. Add the grated Parmesan cheese and cherry tomatoes, stirring until the cheese has melted and the sauce has thickened, about 3-4 minutes.
Add the cooked penne pasta to the skillet and toss to combine everything evenly. If the sauce is too thick, add a splash of pasta water to reach desired consistency.
Remove from heat and garnish with fresh parsley before serving.
Notes
If the sauce is too thick, add a splash of pasta water to reach desired consistency.