Sarson Ka Saag: Saag Paneer with Broccoli Rabe and Spinach

Name: Sarson Ka Saag: Saag Paneer with Broccoli Rabe and Spinach
Ingredients: 1 bunch broccoli rabe; 1 broccoli crown; 1/2 pound fresh spinach (not baby), well-washed and chopped; 3 tablespoons ghee, divided (or sub unsalted butter, clarified butter, or cooking oil); 1/2 teaspoon (each) black peppercorns, mustard seeds, and fenugreek seeds; 1 teaspoon coriander seeds; 1 tablespoon cumin seeds; 2 dried red chiles, stemmed, seeded, and torn into pieces; 1 medium-large yellow onion, diced; 2 pieces fresh ginger root, peeled and grated; 2 pieces fresh turmeric root, peeled and grated; 2 thai or serrano chiles, stemmed, seeded, and minced; 6 garlic cloves, peeled and minced; 2 tablespoons tomato paste; 1 cup water; 1 cup heavy cream; 12 ounces paneer, cubed; lemon juice, cilantro, and salt to taste; garam masala to finish