Orange Pork with sprinkles

2 navel oranges 1 teaspoon olive oil 1 (12 ounce) pork tenderloin (trimmed and thinly sliced on the diagonal) 3/4 teaspoon salt 1/4 teaspoon pepper 1 1/2 lbs[...]

1 1/2 lbs medium beets , trimmed 5 tablespoons orange juice 2 tablespoons rice vinegar 1 tablespoon Dijon mustard 6 tablespoons vegetable oil salt and pepper[...]

4 pork loin or 4 rib chops, 1/2 to 3/4 inch thick 1 teaspoon salt 1 small onion , sliced 0.5 (6 ounce) can frozen orange juice concentrate, thawed 2[...]