Peas with Tomatoes

Description
In Romanian: Mazare cu rosii.

Ingredients

 * 2 lbs/1 kg peas,
 * 1 tablespoon butter,
 * 4-5 tomatoes,
 * 1 onion,
 * 1 teaspoon sugar (optional),
 * 1 teaspoon chopped dill, salt

Directions

 * 1) Fry the onions in butter until yellow.
 * 2) Add peas, peeled, seeded and chopped tomatoes, sugar, salt and dill.
 * 3) Simmer until the peas are done.
 * 4) There should be very little liquid left.