Honduran Plato Típico

Name: Honduran Plato Típico
Ingredients: 500 g beef flank or skirt steak; 2 cloves garlic (minced); 1 tsp ground cumin; 1 tsp paprika; Juice of 2 limes; 2 tbsp vegetable oil; Salt and freshly ground black pepper (to taste); 2 ripe plantains (sliced diagonally); 400 g cooked red or black beans; 1 small onion (finely chopped); 1 cup white rice (rinsed); 2 cups water; ½ tsp salt; 100 g fresh cheese (queso fresco or feta, crumbled); 1 avocado (sliced); 4 corn tortillas; Pickled red onions (optional, for serving)