Black Bean Enchiladas
["1 small onion, chopped", "1 Tbsp. vegetable oil", "1 (16 oz.) can crushed tomatoes", "1/2 tsp. dried oregano", "1/2 tsp. salt, divided", "1 c. Ricotta cheese", "1 (16 oz.) can black beans, drained", "4 oz. Jack cheese, shredded (1 c.)", "1 (4 oz.) can chopped green chilies", "8 corn tortillas"]
["Preheat oven to 425\u00b0.", "In a large skillet, cook onion in oil for 4 minutes.", "Add tomatoes, oregano and 1/4 teaspoon of salt. Bring to a boil.", "Reduce heat; simmer 10 minutes."]
["onion", "vegetable oil", "tomatoes", "oregano", "salt", "Ricotta cheese", "black beans", "Jack cheese", "green chilies", "corn tortillas"]