A bunch of head notes here, apologies. This recipe calls for an incredible amount of spinach. Just know, it cooks down dramatically. I call for baby spinach, because it saves me having to trim a lot of unruly stems from bundles of spinach, but use any blend of greens you have on hand. For example, feel free to use any fresh spinach, but make sure it isn't overly stem-y. If you have kale or mustard greens you need to use, trade it in for some of the spinach if you like. On the cheese front, halloumi is a solid/ok substitute for paneer, but if you can get good paneer you should. And if you like a higher cheese to spinach ratio, cook up 12 ounces of paneer. If I have canned crushed or whole tomatoes that need to be used up, I throw some of those in too (chopped/drained) - good.
*Spice Mixture: Use a mortar and pestle or spice grinder to grind the following spices as finely as possible: 2 tablespoons cumin seed, 1 tablespoons coriander seed, 2 teaspoons mustard seed, 1 teaspoon red pepper flakes, 1/8 teaspoon cardamom seeds, 3 whole cloves. Store in an airtight container and use as needed.