In a small bowl, combine water, 2 tablespoons olive oil, mustard, vinegar, and seasonings; mix well. Place ribs in a large resealable plastic bag or shallow glass container. Set aside half of marinade. Pour remaining marinade over ribs; turn to coat. Cover and refrigerate for several hours.

Drain; discarding marinade. In a skillet, brown the ribs in remaining oil. Transfer ribs to a greased shallow 1-qt baking dish. Combine tomato sauce and reserved marinade; pour over ribs. Cover and bake at 350 degrees for 90 minutes or until meat is tender.