At least 1 1/2 hours before serving, make the toasts. Heat oven to 350°F. Spray 15x10x1-inch pan with cooking spray. Bake French bread 24 to 26 minutes or until browned. Cool completely, at least 30 minutes. Cut into 1/2-inch slices. Brush slices on both sides with melted butter. Return to pan; bake 10 to 15 minutes, turning once, until light golden brown.