To prepare the gravy, melt butter with olive oil in a large pan over medium-high heat. Add onions, carrots, and celery.
4 tablespoons butter, 2 tablespoons olive oil, 1 medium onion, 4 carrots, 4 ribs celery
After 2-3 minutes add fresh herbs and salt and pepper. Add flour. Cook 2-3 minutes until mixture bubbles and thickens slightly.
2-4 sprigs fresh herbs such as rosemary or lemon thyme, Salt and pepper to taste
Add chicken stock, half and half, and parmesan cheese. Simmer over medium heat. Stir frequently until it begins to thicken.
1/3 cup flour, 4 cups chicken stock, 1 1/2 cups half & half, 1 cup parmesan cheese
Add chicken and frozen peas in the last minute. Simmer another minute, then remove from heat.
2 1/2 cups cooked chicken, 1 cup frozen petite peas
To make the biscuits, preheat oven to 350 degrees. In the bowl of your stand mixer, mix flour, butter, baking powder, and salt on low. This may also be mixed by hand. Mix well until crumbly.
2 1/4 cups flour, 1 cup cold butter, 1 tablespoon baking powder, 1/2 teaspoon kosher salt
Add cheese, sour cream, and half and half. Mix until it just comes together.
1 1/2 cups shredded cheddar cheese, 1/2 cup sour cream, 1/4 cup half & half
Pour creamy chicken mixture into a buttered 9x13 glass casserole dish, then spoon heaping tablespoons of the drop biscuit mixture over the top.
Bake the chicken pot pie at 375 degrees for 40-45 minutes, or until the biscuit topping is cooked through and golden brown. Let cook for 10 minutes. Enjoy!