In a pan add some oil and cook the garlic and onion. Then add the cherry tomatoes and let it simmer until the cherry tomatoes go soft. Season to taste: I added 1/2 tsp of vegetable stock, salt, pepper and a tsp of sugar.
Add the butter beans at the very end, they don’t need to cook but just heat up.
You can have this on a slice or two of garlicky sourdough bread or, like we did, on top of your favourite pasta.