Start by bringing a large pot of salted water to a boil over high heat. Once boiling, carefully add the cheese tortellini. Cook according to the package instructions, or until al dente, usually around 3-5 minutes for fresh or 6-8 minutes for frozen. Drain the tortellini and set aside, allowing any excess water to escape.
In a large skillet, melt the unsalted butter over medium heat until it’s fully melted and bubbly. Add the diced chicken breasts to the skillet, cooking for approximately 5-7 minutes. Stir occasionally to ensure even cooking, until the chicken pieces are golden brown and no longer pink in the center.
Add the minced garlic to the skillet with the cooked chicken. Sauté for about 1 minute until the garlic becomes fragrant and is lightly golden, taking care not to let it burn.
Sprinkle in the smoked paprika, chili powder, Worcestershire sauce, Dijon mustard, salt, and freshly cracked black pepper. Stir well to evenly coat the chicken mixture with the spices and flavors, cooking for another minute to allow the spices to bloom.
Pour in the heavy cream gradually, stirring continuously for a smooth consistency. Allow the sauce to simmer gently for about 2-3 minutes until it thickens slightly, adjusting the heat as necessary to avoid boiling.
Fold in the halved cherry tomatoes and the cooked tortellini, gently tossing everything together until the tortellini and tomatoes are well coated in the creamy sauce.
Remove the skillet from heat and mix in the chopped parsley, giving a fresh burst of flavor to the dish.
Serve the Cowboy Butter Chicken Tortellini warm, garnished with a generous sprinkle of grated Parmesan cheese for added richness.