Preheat the oven to 400°F (200°C) and coat a baking sheet with cooking spray.
Coat a skillet with cooking spray and set it over medium heat. Add the garlic, shallots, carrot and rutabaga. Cook, stirring often, until the vegetables soften and begin to brown.
Add the salt, black pepper, turmeric, garam masala and chili powder. Stir for 1 minute.
Add fresh spinach and cook just until wilted. If using thawed frozen spinach, stir it in and proceed to the next step.
Remove the skillet from the heat. Stir in the tomato paste, flour and cilantro. Add the water gradually until the mixture is thick enough to hold in separate mounds.
Divide the mixture into about 8 mounds on the prepared baking sheet, leaving space between them. Spray the tops and sides lightly with cooking spray.
Bake for about 25 minutes, or until browned, crisp at the edges and firm in the center.