Prepare the Filling: Combine the crab meat, chopped shrimp, cream cheese, shredded cheese, and green onions in a mixing bowl. Add garlic powder, cumin, salt, and pepper to taste, and mix until smooth.

Assemble the Taquitos: Lay a tortilla flat, spoon about two tablespoons of filling onto the bottom third, and roll tightly, tucking the sides in to hold shape.

Heat the Oil: In a skillet, heat 1 inch of vegetable oil to 350°F (175°C). Test readiness with a small piece of tortilla; it should sizzle.

Fry the Taquitos: Place a few taquitos seam-side down in the skillet, frying for 2-3 minutes on each side until golden brown. Drain on paper towels.

Serve and Enjoy: Arrange on a platter, serve warm with dipping sauces like salsa or guacamole.