In a large skillet melt ½ stick of the butter. Add the onions, green chiles, bell peppers, 1 tablespoon Seafood Magic® or Blackened Redfish Magic® and the minced garlic. Sauté over medium heat for 10 minutes, stirring often. Stir in the cream and bring mixture to a rapid boil; then reduce the heat and simmer uncovered 10 minutes, stirring constantly. Add the sour cream; with a metal whisk, beat continuously until the sour cream is dissolved, about 3 minutes. Add 3 cups of the cheese and stir until melted. Set the sauce aside.
In a 4-quart saucepan melt the remaining ½ stick butter. Add the crawfish, green onions and the remaining Seafood Magic® or Blackened Redfish Magic® . Sauté over medium heat for about 6 minutes, stirring occasionally. Add the cheese sauce to the crawfish mixture and stir well. Simmer until the flavors are well blended, about 6 to 10 minutes, stirring occasionally. Set aside.
In a small skillet heat the oil to 325º. Holding the tortilla with metal tongs, dip each into the hot oil just long enough to soften, about 1 second on each side; drain on paper towels. Spoon about ⅓ cup sauce on each tortilla and roll up tortilla; place seam side down on a heated serving plate. Cover the tortilla from end to end with a generous amount of additional sauce. Then sprinkle it with ¼ cup cheese. For the prettiest presentation, place the enchiladas under a broiler near the flame until the cheese melts and begins to brown, about 2 minutes. Or, bake the enchiladas in a 350º oven until cheese melts, about 5 to 8 minutes. Serve immediately.