Directions

1. In a skillet over medium heat, cook beef and onion until meat is no longer pink; drain. Remove from the heat. Stir in ketchup and salt; set aside.
2. Combine biscuit mix and milk just until moistened. Turn onto a lightly floured surface and knead 6-8 times. Roll into a 10-in. circle; transfer to a greased 9-in. pie plate. Flute edges. Spoon meat mixture into crust. Sprinkle with tomatoes.
3. Bake at 425 degrees for 20-25 minutes. Sprinkle with cheese; bake 2 minutes longer or until cheese is melted.