In this one-pot dinner, the salmon and vegetables cook together. The dish gets its fantastic flavor from traditional Moroccan ingredients, including harissa (chile sauce) and chickpeas.
Heat oil and garlic in a large stockpot over medium heat for 30 seconds. Add harissa and tomato paste. Cook, stirring, until combined, 1 to 2 minutes. Whisk in stock, and bring to a simmer.
Add sweet potato, cauliflower, zucchini, and squash to pot; season with 1/2 teaspoon salt. Steam, covered, until vegetables are al dente, 12 to 15 minutes.
Add chickpeas to pot. Season each salmon steak on both sides with salt and 1/4 teaspoon cayenne pepper. Secure ends of each steak together with a toothpick or wooden skewer. Lay salmon on top of vegetables. Steam, covered, until salmon is slightly firm to the touch, 8 to 10 minutes. Sprinkle with cilantro.
Serving Idea Arrange salmon and vegetables over couscous or rice, and spoon some broth over each serving.