Chicken Tortilla Soup

Ingredients

• 1 stick of butter
• 1/2 onion, diced
• 3 tbs minced garlic
• 3 cans chicken stock
• 4 cups milk
• 1 rotisserie chicken, shredded
• juice of 1/2 lime
• 1 cup salsa
• 2 tsp cumin
• 2 tsp oregano
• 1 pkg fajita seasoning
• 1 can of corn
• 1 can of black beans, drained
• 1 can of kidney beans, drained
• optional toppings: sour cream, shredded cheese, tortilla strips