Heat oven to 350 degrees and grease a 9×13 pan. Butter in this house, always. Steam the green beans according to microwave directions.
Separate each biscuit into thirds and press around the pan to make a crust. The curvature makes a nice decorative lattice work. Effortless style.
Bake 8-10 minutes or until set. Meanwhile, in large bowl mix mushroom soup, drained beans, 2/3 cup French fried onions, and salt and pepper. Spoon over set biscuits.
Bake 27-30 minutes. Remove and top with remaining French-fried onions and bake about 5 more minutes to brown them. Let stand about 10 minutes before serving.