Lunch: Ground Beef Tacos with Spicy Shells

Line taco shells with lettuce leaves so the filling stays put inside.

Ingredients

2 tbsp. olive oil
1 medium onion, finely chopped
2 large cloves garlic, finely chopped
2 tsp. ground cumin
1 tsp. dried oregano
1 tsp. ground coriander
1/2 tsp. chili powder
1 1/4 lb. ground beef (at least 90% lean)
3 tbsp. tomato paste
2 tsp. low-sodium beef bouillon base (we used Better than Bouillon)
8 small yellow corn tortillas (see box, below)
8 butter or iceberg lettuce leaves
2 tomatoes, chopped
Shredded cheddar, for serving

Instructions

Heat the oil in a large skillet over medium heat. Add the onion and cook, covered, stirring occasionally, until tender, 8 to 10 minutes. Add the garlic, cumin, oregano, coriander and chili powder and cook, stirring, 1 minute.
Increase heat to medium-high, add the beef and cook, breaking it up with a spoon until browned, 4 to 5 minutes. Add the tomato paste and cook, stirring 2 minutes. Add the bouillon base and 1 cup water and gently simmer until thickened, 2 to 3 minutes.
While the beef is browning, prepare the spicy taco shells (see tip, below). Line the tortillas with lettuce, fill with the beef, and top with the tomatoes and cheese, if desired.

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