Quick Black Bean Tostadas

Ingredients (for 10 servings)

• 10 whole — corn tortillas
• 2 can — black beans
• 2 tbsp — lemon juice
• 1.5 tbsp — onion powder
• 1.5 tbsp — garlic powder
• 1 tsp — cumin
• 0 — Sea salt
• 0 — black pepper
• 2 cup — romaine lettuce
• 1 whole — green onion
• 1 whole — tomato
• 3 tbsp — cilantro