Vegetarian/Enchilada-casserole

Ingredients

• 1 tbsp olive oil
• 300g onion
• 1 clove garlic
• 1 cup pinto beans
• 0.50 cup salsa
• 1 tsp oregano
• 0.75 cup milk
• 0.25 cup milk
• 2 tbsp white flour
• 1.50 cup jack cheese
• 12 corn tortillas
• 3 green onions
• 2 tsp crushed red pepper or paprika