Half a pound of shrimp feeds four people in this clever kebab dish with the help of a filling lentil salad side.
Special equipment: eight 10-inch skewers.
Combine 5 cups cold water, the lentils, garlic and 2 teaspoons salt in a medium saucepan. Bring to a boil, and then reduce to a simmer. Simmer until the lentils are tender but still hold their shape, 20 to 25 minutes, then drain. Remove the garlic halves and mash them with the flat side of a knife. Place the mashed garlic in a large bowl. Whisk in 2 tablespoons of the oil, ¼ teaspoon of the cumin, lemon juice, a few grinds of pepper and ½ teaspoon salt. Add the drained lentils and toss to coat.
Heat a grill pan set over medium-high heat. Place the shrimp in a medium bowl and the tomatoes and squash in another bowl. To each bowl, add 1 tablespoon of the olive oil, ¼ teaspoon cumin, ¼ teaspoon coriander, ¼ teaspoon paprika, ¼ teaspoon salt and a pinch of pepper. Toss to coat. Thread 2 pieces of shrimp, 2 tomatoes and 2 pieces of squash onto each skewer. Rest the kebabs at room temperature for 15 minutes.
Grill the skewers until the shrimp are firm and opaque and the squash are firm-tender, 1 ½ to 2 minutes per side. Sprinkle lightly with salt.
Fold the dill, parsley and scallions into the lentil salad, then divide among four plates. Top each salad with 2 skewers. Serve with lemon wedges on the side.