Succulent Slow Cooker Succotash

olive oil

onions, finely chopped

stalks celery, peeled and thinly sliced

large carrots, cut in quarters lengthwise, and then thinly sliced

garlic cloves, minced

paprika

salt

cracked black peppercorns

tomatoes, including juice, coarsely chopped

corn kernels, thawed if frozen

whipping cream

grated parmesan cheese

freshly grated nutmeg,