Lamb Kebabs with Harissa, Chickpeas, and Summer Squash

Everyday kebabs of pork, beef, or chicken are certainly delicious, but there’s something celebratory about lamb kebabs, especially when the meat has a short bath in the flavors of North Africa: spicy harissa paste, garlic, and olive oil. A quick sauté of onion, summer squash, and chickpeas flavored with the marinade you used for the lamb makes this dish easy enough for weeknights but good enough for company. And a drizzle of lemony sour cream takes this meal from really good to really, real