Kale and Quinoa Salad with Cranberries and Feta

quinoa, rinsed and drained

dried cranberries

olive oil, for cooking

medium shallot or a small chunk of purple onion, peeled and thinly sliced

small bunch of kale

salt and pepper

dried chili flakes (optional)

crumbled feta

pine nuts or 1/2 cup chopped walnuts, toasted

squeeze of lemon (optional)