Veal With Peas with potatoes

600 g boneless veal steaks 2 tablespoons olive oil 80 g butter 200 g mushrooms (white) 1 garlic clove 1 teaspoon lemon zest 1 tablespoon lemon juice 1[...]

1 tablespoon olive oil 1 lb lean veal shoulder, cut into 1 1/2-inch cubes 1/2 teaspoon salt fresh ground black pepper 20 shallots , peeled and left whole 2[...]