Lentil Curry
1T olive oil
1 medium onion, finely chopped
2T curry powder
1# sweet potatoes, peeled, cut to 1-inch chunks
1 head cauliflower, bite-size
1C brown lentils, rinsed and drained
2 14.5oz cans diced tomatoes with juice
coarse salt
plain low-fat yogurt for serving

heat oil; cook onion; add curry, stir 1 min; add 
other ingredients and 1 1/2C water; season with salt;
bring to boil; reduce to simmer; cover and cook until
tender, about 30 minutes.