Mushroom Cheddar Soup - Got Milk

Ingredients

• Sliced baby portabello mushrooms
• 1 cup yellow onion , peeled, sliced
• 1 tablespoon garlic , peeled, minced
• 1 tablespoon vegetable oil
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper
• 1/4 cup butter
• 1/4 cup flour
• 2 cups low-sodium chicken broth
• 2 cups lactose-free whole milk
• 2 cups shredded cheddar