Pork Tenderloin without zucchini butter

1 pork tenderloin (cut into 3/4-inch medallions) 2 -3 tablespoons oil (any vegetable oil is fine) 1 medium onion , finely chopped 2 cups sliced fresh[...]

2 (12 ounce) pork tenderloin, trimmed 2 tablespoons minced fresh sage , divided or 2 teaspoons dried sage salt & freshly ground black pepper 2 tablespoons[...]