Retro Ground Beef Casserole with Biscuits

By Lela

4.55 / 5

25min

40min

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1 cooking spray
2 tablespoons canola oil
1 cup chopped carrots
1 cup chopped onions
1 cup chopped celery
1 pound ground beef
4 tablespoons butter
3 tablespoons all-purpose flour
1 cup milk
2 cups beef broth
1 ½ teaspoons garlic salt
1 teaspoon onion powder
1 teaspoon garlic powder
¼ teaspoon ground black pepper
1 cup buttermilk
3 cups baking mix (such as Bisquick® Heart Smart Pancake and Baking Mix)