Shredded Pork Smothered Burritos

Name: Shredded Pork Smothered Burritos
Ingredients: 1/2 cup vegetable shortening; 3/4 cup all purpose flour; 1 Tablespoon mole sauce (heaping Tablespoon) ((found in Hispanic section)); 4 cups beef stock; 2 Tablespoons chili powder; 1-1/2 teaspoons cumin; 1/2 teaspoon oregano; 1 teaspoon kosher salt; 1/2 teaspoon ground pepper; 1/2 teaspoon garlic powder; 1/4-1/2 teaspoon red pepper flakes; 1/2 cup milk; 16 ounces tomato sauce (two 8 oz. cans); 6 ounces tomato paste; 2 cups water; 3 cups precooked pork (, shredded (can substitute shredded chicken or beef if you prefer)); 1 envelope taco seasoning; 1/2 medium onion (, chopped); 1/2 green pepper (, chopped); 1 1/2 cups cooked white rice; 16 oz. can spicy refried beans; 3 ladles prepared Red Sauce; 6 flour tortillas ((burrito size)); 2 cups Pepper Jack cheese (, grated); 2 cups Cheddar cheese (, grated); 1/2 cup guacamole ((for garnish)); 1/2 cup sour cream ((for garnish)); 1/2 cup shredded lettuce ((for garnish)); 1/4 cup Cilantro (, chopped (for garnish))