Season the chicken breasts with salt, black pepper, chili powder, and garlic powder.
Heat olive oil in a skillet over medium heat and cook chicken until golden brown on both sides, about 5-7 minutes per side.
In a saucepan, combine shredded cheese, heavy cream, cumin, and cayenne pepper. Stir until smooth and creamy.
Pour the cheese sauce over the cooked chicken and let it simmer for 2 minutes.
Top with diced tomatoes and chopped cilantro before serving.