Chicken and Rice Casserole

Ingredients (18)

• 3 cups shredded, cooked chicken breast* (about 3 medium breasts)
• 3 cups cooked brown rice or wild and brown rice blend
• 1 tablespoon extra virgin olive oil
• 1 tablespoon unsalted butter
• 1 small yellow onion diced
• 1 teaspoon kosher salt
• 1/2 teaspoon black pepper
• 2 teaspoons minced garlic about 2 cloves
• 2 tablespoons white whole wheat flour
• 1 (14-ounce) can reduced sodium chicken broth
• 1 cup nonfat milk or milk of choice
• 16 ounces frozen mixed vegetables
• 1 cup 2% Greek yogurt or full-fat do not use fat free as it is prone to curdling
• 1 cup shredded sharp cheddar cheese divided
• 1/2 Cup shredded mozzarella cheese
• 1 teaspoon Dijon mustard
• 1/2 teaspoon dried thyme
• Chopped fresh parsley or thyme for serving