1/4 cup olive oil
1 large red or yellow onion, diced
2 celery stalks, halved lengthwise and thinly sliced
4 cloves garlic, minced
One ½-inch piece fresh ginger, minced
Kosher or sea salt
2 tablespoons fresh curry powder
½ teaspoon cumin
1 cup brown or green lentils, rinsed
One 14-ounce can diced or crushed tomatoes
6 cups water
1 cup coconut milk (not low fat)
Juice of 1 lime
Plain yogurt for garnish
Cilantro leaves for garnish