This outrageously delicious cabbage stir-fry is also known as Solyanka (or Soljanka). Made with cabbage, a little bit of pickled cucumber (for saltiness), and a broth. So good!
In a large skillet, heat olive oil on medium heat, add chopped onion and minced garlic and cook until softened for about 2-3 minutes. Reduce heat, if necessary, to avoid burning the onions and garlic.
Add tomato paste and about 2 tablespoons of water to the skillet, and mix, cooking on medium heat, to make sure the tomato paste is well combined with onions and garlic.
On medium heat, add shredded cabbage, finely chopped pickled cucumber, chopped mushrooms and chopped ham to the tomato paste mixture, mix to combine. Add more water if needed, by tablespoons, to make sure your mixture remains moist but not soupy.
Reduce heat to simmer and let the vegetables braise on very low heat for about 40 minutes to make sure all flavors blend well. Season with salt and pepper to taste.