Lentil and Buckwheat Salad
You can add other chopped vegetables such as zucchini, summer squash, any color bell pepper, or mushrooms. Add the squash when you add the carrots. Wait until carrots are nearly cooked before adding bell pepper or mushrooms.
Whole buckwheat kernels can be found in health food stores and some supermarkets. Raw groats are different than kasha, which has been toasted. If you can't find buckwheat, try any chewy whole grain: wheat berries, faro, spelt berries, barley, or sorghum.