Lamb with Spinach and Garlicky Tahini Sauce

INGREDIENTS

• 1 package frozen leaf spinach, thawed and warmed in the microwave
• 4 garlic cloves, minced or pressed
• 1 tablespoon sesame seeds, toasted
• 1/4 teaspoon ground cumin, plus more for garnishing
• 2 lemons, juiced
• 1 onion, roughly chopped
• 10 lamb noisettes, about 1 1/4-inches thick
• 8 tablespoons tahini
• 1 lemon, zested
• 1 1/4 cups extra-virgin olive oil
• 1/2 teaspoon coarse salt
• 1 tablespoon olive oil