Clean and wash the vegetables and cut into fine strips. Peel garlic and chop very finely. Peel onion and chop finely. Heat olive oil in a very large pan. Sauté onion and garlic in it until translucent, add vegetables and stew for about 10 minutes while turning.
Season with salt and pepper. Meanwhile prepare noodles in boiling salted water according to the instructions on the packet. Deglaze vegetables with 6-7 tablespoons of pasta water. Wash parsley, shake dry and cut into fine strips.
Drain the noodles, rinse, drain. Mix the noodles with the vegetables, season again with salt and pepper. Add parsley and arrange.