In a medium sized, oven safe skillet, melt your butter on medium heat. Add the onion and pepper and sauté for 3 minutes. Move your veggies to the side of the pan and add in the chopped up shrimp, garlic and season with your chili powder and salt to taste. Toss everything around for 2 minutes. Stir in the lemon juice and Worcestershire.
Remove the pan from the heat and mix in the cream cheese, sour cream and 1/2 cup of the mozzarella, parmesan and chives until smooth and combined. Top the mixture with the remaining mozzarella and bake for 20 minutes. Turn on your broiler for 1 or 2 minutes to achieve those golden brown bubbles.
Top with some fresh chives and serve with toasted French bread or tortilla chips.
Notes
Any spicy seasoning can work here like Chipotle, cayenne or you can go the Old Bay or Cajun seasoning route.