Cut onion, carrot and celery into pieces. Fry onions with carrots in hot oil, add peppers, peeled from seeds and cut into pieces. Simmer for 5 minutes, stirring occasionally. Add celery and green beans. Simmer over low heat, stirring occasionally, for 10 minutes. Finally add spinach and cooked beans. It is good to stir everything, salt and season to taste. Simmer vegetable stew for 3 minutes and turn off heat.
For meatballs, add salt, pepper, starch and an egg to the minced meat. Mix well and beat off. Form into egg-sized round meatballs. Dip meatballs in breadcrumbs. Fry pork meatballs in hot oil on all sides. Put half of the vegetable stew in a baking sheet. Spread meatballs on top. Then again the remaining stew.
Place the baking sheet in an oven preheated to 180 degrees for 30 minutes. You can serve vegetable stew with pork meatballs in the same dishes that you baked.