Soak great northern beans in water for 6-8 hours or overnight.

Alternatively, boil beans for 3-3.5 hours if a quick soak is needed.

Chop the onions.

Saute the chopped onions in oil until softened.

Drain the soaked beans.

Add water and drained beans to the sauteed onions.

Bring the mixture to a low simmer and cook for 1 hour.

Add crushed tomatoes to the simmering beans.

Continue to simmer until the beans are soft and the soup has thickened.

Season with salt to taste.

Serve hot with pink rice.