Step 1

Preheat oven to 400°F and prepare a 9x13-inch baking dish by spraying it with nonstick spray.

Step 2

In a large skillet over medium heat, melt the butter.

Step 3

Add the onions, cooking for 3-5 minutes, or until translucent.

Step 4

Add the garlic and cook for one minute, or until fragrant.

Step 5

Stir in the shrimp, imitation crab, cumin, chili powder, and pepper until combined. Cook until the shrimp turns pink.

Step 6

Add the shredded cheese and cilantro. Remove from heat.

Step 7

Equally divide the seafood mixture between the 8 tortillas, rolling them up and placing them seam-side down in the prepared baking dish. Set aside as you prepare the creamy sauce.

Step 8

In a saucepan over medium heat, melt the butter.

Step 9

Whisk in the flour. Simmer for 1-2 minutes.

Step 10

Add the milk, sour cream, jalapeno, white pepper, and cumin. Stir until the sauce starts to thicken.

Step 11

Remove from heat and add the shredded cheese, stirring until melted.

Step 12

Pour the sauce over the rolled tortillas. Sprinkle with 1/2 cup of shredded cheese and bake for 15-20 minutes, or until bubbly.

Step 13

Top with cilantro, diced tomatoes, and sour cream (optional).