Preheat oven 400ºF
Spread broccoli, tomatoes, onion, and garlic cloves on 2 parchment-lined baking sheets and roast 15-20 minutes or until tender
Peel the roasted garlic - careful, it will be hot - and add it to a blender with the water, chickpea flour, lemon juice, poultry seasoning, and salt and blend until a smooth batter forms
Pour batter into a large mixing bowl and stir in the remaining roasted vegetables
Use a ladle to spoon batter into a standard 12-cup silicone muffin pan (or use a metal muffin pan lined with parchment baking cups)
Bake for 30-35 minutes or until the tops are brown and a toothpick inserted in the middle comes out clean
Allow to cool before serving