Hearts of Palm, Corn, Cherry Tomatoes and Avocado Salad with Green Onion-Coconut Dressing

1 bunch green onions (green part only)

1 (14 ounce) can coconut milk

1/4 cup unsweetened shredded coconut (desiccated)

1/2 cup lime juice

1 egg

1/3 teaspoon cayenne pepper

2 shallots

2 cloves garlic, chopped to 1 teaspoon

1 tablespoon honey

1 1/2 cup olive oil

Salt and pepper

1 (12.5 ounce) can hearts of palm, cut in 1/2-inch slices

1 cup corn kernels blanched

1 pint cherry tomatoes, halved

1 avocado, peeled, pitted and cut in medium dice

1 pound baby lettuce

1/4 bunch cilantro sprigs, for garnish