Sauté onions until soft. Add carrots and potatoes and sauté 3-4 minutes more.
Add peas and heat and mix until all peas are covered in the olive oil.
Add the tomato, dill, pepper and a half teaspoon salt. Add enough hot water so that the peas are covered just a bit (about ¼ cup).
Mix well and bring to a boil. Then lower heat and simmer for 30 minutes, until peas are soft and water is gone-they should only be left with the olive oil.
Serve at room temperature with feta and bread. Add salt as needed.