Chilli Cheese Soup

Ingredients

• 2 Tbsp. vegetable oil
• 1 finely chopped onion
• 4 finely chopped green onions
• 1 clove minced garlic
• 1 (10 oz.) can tomatoes and green chilies
• 1 (4 oz.) can chopped green chilies
• 2 c. water, divided
• salt and pepper to taste
• 1 (13 oz.) can evaporated milk
• 2 c. (8 oz.) Monterey Jack cheese
• 1 c. (4 oz.) shredded American cheese
• 1/2 c. butter