Prepare the Chicken: If not using rotisserie chicken, cook chicken breast in a skillet over medium heat until fully cooked (about 7-10 minutes). Let cool, then shred or dice.
Mix Ingredients: In a large mixing bowl, combine the softened cream cheese, Greek yogurt (or mayonnaise), shredded cheddar cheese, chopped jalapeños, sliced green onions, garlic powder, onion powder, salt, and black pepper. Mix well until creamy and combined.
Add Chicken: Gently fold in the cooked chicken until well coated with the creamy mixture.
Adjust Seasoning: Taste and adjust seasoning if necessary, adding more jalapeños, salt, or pepper as desired.
Serve: Serve immediately or refrigerate for 30 minutes to allow flavors to meld. You can enjoy it on its own, on a bed of lettuce, in a wrap, or as a filling for sandwiches.
Optional Crunch: If desired, top with crushed tortilla chips just before serving for added texture.