Filling

1. 1 onion, finely chopped
2. 1 tbsp (15 ml) vegetable oil
3. ½ lb (225 g) lean ground beef
4. 1 garlic clove, chopped
5. 1 tbsp chili powder
6. ½ tsp ground cumin
7. 1 can (14 oz/398 ml) brown lentils, rinsed and drained
8. ½ cup (125 ml) beef broth
9. 1 tomato, diced

Tacos

1. 2 tomatoes, diced
2. ¼ cup (10 g) cilantro, finely chopped
3. 1 tbsp (15 ml) lime juice
4. 12 hard taco shells
5. 1 cup (100 g) orange cheddar cheese, grated
6. 2 cups (120 g) iceberg lettuce, thinly sliced
7. Sour cream, to taste