
Warm the oil in a large pot over medium heat. Cook the chopped onion 5 minutes, then add the garlic and tomato paste for 1 minute.
Add the potatoes cut in 1-inch chunks, the trimmed green beans, diced tomatoes, 1 cup water, salt, and pepper. Stir well.
Cover and simmer 25 minutes, stirring once or twice, until the potatoes are tender and the beans are soft.
Stir in the drained cannellini beans and simmer 5 more minutes uncovered to thicken the sauce.
Top with chopped parsley and crumbled feta. Leave feta off a portion for anyone dairy-free.
Photo: DinnerDrop