You may use this recipe for Beef Stew Tacos.

1 1/4 pounds chuck roast, cut into bite-size pieces
2 tablespoons all-purpose flour
1 tablespoon vegetable oil
1 green bell pepper, chopped
1 medium onion, chopped
1 or 2 fresh jalape? peppers, minced
1 1/2 cups beef stock
1 tablespoon tomato paste
2 teaspoons cumin seeds, toasted and ground
1/2 teaspoon chili powder

Heat oil over medium-high heat until it just begins to smoke. Add beef and stir constantly until it is well browned. Add bell pepper, onion, jalape?s, beef stock, tomato paste, cumin seeds and chili powder and bring the Guisada to a simmer on the stove. Cover the skillet and place it in the oven. Bake for about 2 1/2 hours, until the meat is falling-apart tender. During the cooking, check the meat every 10 minutes and add additional water or beef stock, if necessary. When the dish has finished cooking, there should be enough liquid to come about halfway up the meat, and it should be rather thick.

Make a roux with the all-purpose flour and vegetable oil. Add the roux in 1 teaspoon increments, to give the sauce a final thickening and bind the ingredients together. Remove the bay leaf and serve with rice and refried beans.

Variation
Peel 2 potatoes, cut them into bite-size dices, and boil them until they are just soft. Stir the potatoes into the Carne Guisada, bring to a boil, and simmer for 5 minutes. Wrap in soft, warm flour tortillas.