Healthy Salsa Verde Taco Casserole

Ingredients (for 6 servings)

• 1 tbsp — extra-virgin olive oil
• 1½ lb — tomatillos
• 1 cup — Onions
• 2 whole — jalapeño chiles
• ⅓ cup — Cilantro
• 2 tbsp — lime juice
• 1 whole — Crimini Mushrooms
• 2 cup — barley
• 2 tsp — chili powder
• 1 tsp — Cumin
• ½ tsp — garlic powder
• 2 cup — spinach
• 8 whole — corn tortillas
• 1 whole — great northern beans
• 1 cup — corn
• ¼ cup — nutritional yeast
• 1 whole — scallions