Cut meat into 1 1/2-2 cm (2/3-3/4 inch) cubes. Place in a saucepan with finely chopped onions. Cover and saute over low heat for 60 minutes, stirring occasionally; drain. Add diluted tomato paste and hot water. Sprinkle with salt and pepper. Cover and simmer for 15 minutes. Pare carrots and potatoes. Cut into 1 cm (1/2 inch) cubes. Combine with green peas. Add to meat mixing gently. Cover and cook for 30 minutes or until vegetables are tender. Serve hot.