Prep the chicken. Shred or dice your cooked chicken. If starting from raw, quickly poach or sauté it, then shred.
Keep it bite-sized for even saucing.
Sauté the veggies. Heat oil in a large skillet over medium heat. Add onion and bell pepper. Cook 3–4 minutes until softened.
Stir in zucchini and cook 2–3 minutes more. Add garlic and cook 30 seconds until fragrant.
Layer in the spices. Sprinkle in chili powder, cumin, smoked paprika, oregano, and garlic powder. Stir to coat the veggies and toast the spices for about 30 seconds.
Build the sauce. Add enchilada sauce, tomato paste, and chicken broth.
Stir until smooth. Simmer 3–4 minutes to thicken slightly. Taste and adjust salt and pepper.
Add the chicken. Fold in the shredded chicken and olives.
Simmer 3–5 minutes until the chicken is heated through and the sauce clings nicely.
Make it cheesy. Reduce heat to low. Stir in cream cheese, if using, until melted and silky. Sprinkle shredded cheese evenly over the top.
Cover and let the cheese melt, about 2–3 minutes. If your skillet is oven-safe, you can broil briefly to brown the cheese.
Finish and garnish. Remove from heat. Top with cilantro, green onions, and any extra olives.
Add a squeeze of lime for brightness.
Serve your way. Enjoy straight from the skillet or spoon into bowls. Add sour cream, avocado, or jalapeño slices for heat and creaminess.