For flavoring I add salt, pepper, one bay leaf, and a seasoning called Smoke, which is mostly smoked paprika. All of this goes into the water with the beans.
Let the beans simmer like this 20 to 30 minutes. Then stir the beans and turn the heat down to low. Simmer, covered, on low until the beans are very soft, But not falling apart. This will take 1 to 2.5 hours.
When your lima beans are done cooking, taste them and add more salt pepper and Smoke. They may need quite a bit, so taste as you go, but don't overdo it.
I love these beans alone or with rice and avocado. Very tasty!