1. Soak beans overnight in cold water. Drain and rinse.
2. In large, heavy-bottomed pot, stir together beans, green pepper, oil, onion, garlic, salt, and bay leaves. Cover with water, cover, and boil for 1 hour.
3. Reduce heat and simmer, covered, until beans are very tender, stirring occasionally, and adding water if needed (3-4 hours).
4. Remove and mash about 1/3 of beans. Return to pot. Stir and heat through. Remove bay leaves and stir in lemon juice.
5. Cook rice according to package directions.
6. Serve over warm rice, garnished with pimento and lemon wedges.