Heat the olive oil in a deep large skillet or Dutch oven over medium heat. Once the oil is shimmering, add the pancetta and cook, stirring regularly till just golden and crisped up. If not cooking the pancetta, start with 1/4 cup olive oil and heat for the vegetables below.
Add the onion, and season with a pinch or two of salt and pepper. Cook for 5-6 minutes, until just golden, stirring occasionally.
Add in the chopped kale, and cook for another 10-15 minutes, with the lid off. If you want the stew to be thicker, towards the end of cooking, use the back of a wooden spoon or even a potato masher to gently smash a small portion of the beans.
See blog post for more details and serving suggestions.
Store any leftovers in a sealed container in the fridge. If necessary add some stock to the leftovers when heating over low heat, in case the beans have absorbed too much liquid.
I say that this feeds four. If using it as a side, it will feed up to six.
To keep this meal vegetarian use vegetable broth and omit the pancetta step. I like chicken broth for its rich buttery flavour, but a good vegetable broth will work perfectly.
To replace the white wine, use 1/2 cup (120 mL) vegetable broth + 2 tablespoons white wine vinegar mixed together.
Feel free to replace the two smaller cans of diced tomatoes with a large can of whole tomatoes etc. If using whole tomatoes, break up the tomatoes between your fingertips, and use all the juices in the can.
Variations
You can also add some more protein by way of cooked hot Italian sausage that you have sliced into bite sized pieces. These can be added when you add the kale to warm through. This will make a truly hearty and delicious one pot meal.