In a bowl, pour the flour, form a hollow in the center and add the eggs and the oil. With the levers of a fork, start mixing the ingredients. Transfer the mixture to the lightly floured pastry board and begin to knead for about 10 minutes, until a smooth and homogeneous mixture is obtained, adding a little flour or a drop of warm water, if necessary.
Wrap the dough in cling film and let it rest for 30 minutes, to make the dough more elastic.
Pull the pasta with the machine or by hand and cut the tagliatelle.
Peel the potatoes, wash them and cut them into cubes. Clean the cabbage, wash it and cut the tops and the stem after removing the hardest part.
Heat the oil in a large pan where you will melt the anchovies, add the vegetables. Sauté a few minutes, add the chopped rosemary, the red pepper, lower the heat and cook for 10 minutes or until the vegetables are cooked but firm, adding a little broth or hot water (pasta cooking is fine).
Toast the breadcrumbs in a pan with 2 tablespoons of oil, mixing it until it becomes light brown.
Meanwhile, cook the tagliatelle in plenty of salted water for a few minutes. Drain the pasta, retaining a little of the cooking water, and transfer it directly to the pan with the vegetables. Raise the heat, add the cooking water and cook for a couple of minutes, stirring constantly.
Sprinkle with breadcrumbs and serve immediately.