The following day in a large sauce pan, add beans and just enough water to cover the beans and boil for a 1/2 hr. This step should actually be done twice before starting the cooking process.
Boil for 1/2 hr on low heat and then add in the Olive Oil, Oregano, Tomatoes, Tomato Paste, Rice, Onion, Salt and Pepper. Let this boil on low heat for 1 hr.