Preheat the oven to 375°F.

Peel the plantains and slice them into 1/4-inch thick rounds.

In a large skillet, heat oil over medium heat. Fry the plantains for about 2-3 minutes on each side until they are golden brown. Place them on a paper towel-lined plate to remove excess oil.

In the same skillet, add the chopped onions, green bell pepper, and minced garlic. Sauté for about 2-3 minutes until the onions are translucent.

Add the ground beef to the skillet and cook until it is no longer pink.

Add the can of tomato sauce, sofrito, and salt and pepper to taste. Stir well and let it simmer for about 5-7 minutes.

Grease a baking dish with oil or cooking spray.

Layer the bottom of the dish with the fried plantains.

Pour half of the beef mixture over the plantains.

Sprinkle a layer of shredded cheese over the beef mixture.

Repeat the layers of plantains, beef mixture, and cheese until you have used all the ingredients.

Cover the dish with aluminum foil and bake for about 20-25 minutes.

Remove the foil and bake for an additional 10-15 minutes or until the cheese is melted and bubbly.

Remove from the oven and let it cool for a few minutes before serving.