Sausage, Biscuit, and Gravy Bake

Preheat oven to 350°. Cook sausage in canola oil in a large skillet over medium-high heat 8 minutes or until crumbly and no longer pink; remove from skillet, and drain. Melt butter in skillet; whisk in flour. Whisk constantly 1 minute. Gradually whisk in milk, salt, and pepper. Bring to a boil, whisking constantly; cook 2 minutes. Stir in sausage. Grease an 11- x 7-inch baking dish with cooking spray; place dish on a baking sheet. Split biscuits in half lengthwise; place 8 halves in baking dish. Top with half of sausage mixture and 1/4 cup chopped green onions. Repeat layers. Sprinkle with 3/4 cup shredded sharp Cheddar cheese. Bake 40 minutes or until golden.