01 - Preheat your oven to 375°F.
02 - In a large mixing bowl, combine cream cheese, cheddar cheese, Monterey Jack cheese, sour cream, and mayonnaise. Mix until well blended and smooth.
03 - Fold in the diced jalapeños, green onions, garlic, smoked paprika, onion powder, salt, and pepper until thoroughly combined.
04 - Transfer the mixture to a medium oven-safe baking dish (about 1 quart capacity), smoothing the top.
05 - In a small bowl, mix panko breadcrumbs, melted butter, and Parmesan cheese until well combined. Sprinkle evenly over the dip.
06 - Bake for 20–25 minutes, or until the dip is bubbling and the topping is golden brown.
07 - Remove from the oven and allow to cool for 5 minutes. Garnish with extra jalapeño slices and green onions if desired. Serve warm with tortilla chips, crackers, or fresh vegetable sticks.