Ripe Plantain Pie

Name: Ripe Plantain Pie
Ingredients: 3 ripe (but firm plantains (Use 4 if making the mashed version)); Salt (for boiling); 3 tablespoons butter (only for the mashed version); 1 pound ground beef (or ground turkey or chicken); 2 tablespoons green seasoning; 2 tablespoons coconut oil; 1/4 cup chopped onion; 1/4 cup chopped celery; 1/4 of a red bell pepper (chopped); 1/4 of a yellow bell pepper (chopped); 1/4 of a green bell pepper (chopped); 1/3 cup chicken stock; Salt and black pepper (to taste); 1/2 teaspoon all-purpose seasoning; 2 tablespoons tomato paste (optional); Grated cheese (cheddar, mozzarella, or a mix)