Cut the onions and garlic into small cubes and sauté in oil until translucent. Add the minced meat and fry * crumbly *.
Add the drained corn, the drained beans and the zucchini cut into cubes and cook with them.
Add the vegetable stock and the 2 cans of tomato paste and let everything boil down a little. Season to taste with salt, pepper and smoked salt (if available).
When it is no longer simmering, carefully stir in the sour cream or sour cream (but it tastes good without it too). Taste again - done.