Curried Split Pea Soup with Cauliflower

Name: Curried Split Pea Soup with Cauliflower
Ingredients: 1 teaspoon each whole cumin, fennel, and black mustard seeds; 1 tablespoon finely minced fresh ginger; 1 teaspoon finely minced garlic; 2 cups coarsely chopped onions; 3 large carrots halved lengthwise and cut into 1/2-inch slices; 6 cups boiling water; 2 cups dried green or yellow split peas picked over and rinsed; 1-2 tablespoons mild curry powder to taste; Salt to taste optional; 1 pound fresh or frozen cauliflower chopped