The secret ingredient in this dish, inspired by one served by chef Matthew Dillon at the Corson Building in Seattle, is an easy-to-make Egyptian toasted-nut-and-spice blend called dukkah.
Preheat oven to 425°. In a roasting pan, toss cauliflower and shallots with 3 tbsp. oil and 3/4 tsp. salt. Roast, stirring occasionally, until light golden, about 20 minutes. Add chard stems and ribs, toss to coat, and roast until vegetables are very tender, 7 to 10 minutes more.
Stir in chard leaves, chickpeas, dukkah, and remaining 2 tbsp. oil. Roast until chard is wilted and tender, about 8 minutes. Stir; season to taste with more salt and dukkah.
Note: Nutritional analysis is per serving.
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.