Creamy Chicken Wild Rice Casserole - No Canned Soup - Kitchen Scroll

Ingredients

• 1 1/2 cups wild rice blend, uncooked.
• 1 1/2 pounds chicken pieces.
• 2 tablespoons olive oil.
• 2 tablespoons butter, unsalted.
• 1 yellow onion, diced.
• 3 celery stalks, chopped.
• 3 carrots, chopped.
• 6 garlic cloves, minced.
• 8 ounces mushrooms, sliced.
• 2 cups chicken broth.
• 2 cups milk.
• 1/3 cup flour.
• 2 cups cheddar cheese, divided.
• 1/2 cup parmesan cheese.
• 3/4 cup panko breadcrumbs.