Vegetable soup with oat grains

Wash the beans thoroughly and soak in cold water only while preparing the vegetables for the soup.
Grain oatmeal cooks very quickly and it is not necessary to soak it for a long time, but it is good to leave it for a few minutes just to remove the anti nutrients.

Peel the potatoes and cut into small cubes. Chop the onion, celery and parsley. Chop the tomatoes, removing the seeds, you can keep the skin if using organic tomatoes.

In a large saucepan heat the oil and quickly fry the onion, then add the celery. Add the potatoes and lower the heat.

Drain the water from the oat grains and add to the pan, (If it is in flakes, skip this step). Cover with water, twice the size of the dry ingredients. Cover the pan and place over high heat. When it boils, lower the heat, season with salt in the desired amount.

Add the chopped tomatoes, keep the soup on low heat and cook for about 10 minutes. If necessary add more water, and check the seasoning, adjust the salt, add the other herbs to your taste. (If using flakes, use this step 5 minutes after placing the tomato).
Turn off the heat and serve with toast and a drizzle of olive oil and black pepper to taste.