Season the Meat: In a bowl, combine shrimp with half of the garlic powder, onion powder, paprika, cumin, salt, and pepper. Repeat with beef in a separate bowl.

Cook the Beef: Heat olive oil in a skillet over medium-high heat. Add the beef cubes, cooking until browned and cooked through, about 5-7 minutes. Remove from skillet and set aside.

Cook the Shrimp: In the same skillet, add a bit more olive oil if needed. Cook shrimp until pink and opaque, about 3-4 minutes. Remove and set aside.

Prepare the Cream Base: In a mixing bowl, combine cream cheese, sour cream, and cheddar cheese. Stir in the remaining spices and diced tomatoes with green chilies.

Combine Everything: Preheat the oven to 350°F (175°C). In a baking dish, spread the cream cheese mixture evenly. Add the cooked beef and shrimp on top, lightly mixing them in.

Bake: Place the baking dish in the oven and bake for 20-25 minutes, until the cheese is bubbly and golden.

Garnish and Serve: Remove from the oven and let cool slightly. Garnish with fresh cilantro. Serve with tortilla chips.