Pork Tenderloin With Sauteed Apples & Leeks without sauce

3 tablespoons olive oil 2 teaspoons fennel seeds , crushed 2 medium fennel bulbs , quartered, cored, thinly sliced 1 large onion , thinly sliced 2 tablespoons[...]

2 pork tenderloin, trimmed of excess fat and silver skin (1 1/2 to 2 pounds total) 2 tablespoons olive oil coarse salt and pepper 2 leeks , white and[...]