Pork Tenderloin Smothered in Onion and Mustard

2 tablespoons butter 2 tablespoons oil 4 mushrooms , finely diced 3/4 cup onions or 3/4 cup shallot , finely diced 1 carrot , finely chopped 2 cups coarse[...]

1 lb pork tenderloin 1 teaspoon salt 1/2 teaspoon black pepper 1 cup red onion , thinly sliced 1 apple , cut into thin wedges 1 garlic clove , finely minced 2[...]

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 (12 ounce) pork tenderloin, cut into 2-inch lengths and pounded 1-inch thick salt fresh ground black pepper 1 teaspoon all-purpose flour , plus more for[...]