Grease the crock pot with cooking spray or butter. Add softened cream cheese, cheddar cheese, Monterey Jack cheese, mayo, and sour cream to the crock pot. Mix everything until it's smooth and combined.
8 ounces cream cheese, 1 cup shredded cheddar cheese, 1 cup shredded Monterey Jack cheese, ½ cup mayonnaise, ½ cup sour cream
Stir in diced jalapeños (save some for topping), green chilies, garlic powder, salt, onion powder, and pepper. Mix until evenly distributed.
2-3 diced jalapeño peppers, 1 7-ounce can diced green chilies, 1 teaspoon garlic powder, 1 teaspoon salt, ½ teaspoon onion powder, ½ teaspoon black pepper
Mix Parmesan cheese, panko bread crumbs, and melted butter in a separate bowl until the crumbs are coated.
½ cup grated Parmesan cheese, ½ cup panko bread crumbs, 2 tablespoons butter
Sprinkle the crumb mixture over the dip in the crock pot, covering it completely.
Cook on low for 1-2 hours, stirring halfway, until hot and bubbly.
Top with crispy bacon and extra jalapeños. Serve with tortilla chips or crackers.
¼ cup bacon, tortilla chips