Prep the chicken. Shred or chop into bite-size pieces. Smaller pieces warm faster and blend better with sauces.
Sauté aromatics. Heat olive oil or butter in a large skillet over medium.
Add onion with a pinch of salt. Cook 3–4 minutes until soft. Stir in garlic for 30 seconds.
Build the flavor base. Sprinkle in Italian seasoning and smoked paprika.
Let the spices toast for 20–30 seconds to wake them up.
Add vegetables. Toss in your chosen vegetables. Cook until tender; leafy greens only need a minute, while peppers or mushrooms may need 4–5 minutes.
Make a quick pan sauce. Pour in broth and scrape up any browned bits. Simmer 2 minutes to reduce slightly.
Stir in lemon juice for brightness.
Stir in creaminess (optional but great). Add cream, sour cream, or yogurt. Warm gently until smooth. Avoid boiling yogurt to prevent curdling.
Add the chicken last. Fold in the leftover chicken just until heated through, 2–3 minutes. Do not overcook or it can dry out.
Season and finish. Taste and add salt and pepper.
Stir in herbs. If using cheese, sprinkle on top and let it melt for a minute.
Serve your way. Spoon over cooked pasta or rice, or tuck into warm tortillas for wraps or tacos. Add a squeeze of lemon or a dash of hot sauce if you like.