Preheat your oven to 400°F and line a baking sheet with parchment paper.
In a large bowl, mash the chickpeas with a fork or potato masher until mostly smooth but with some texture remaining.
Stir in the nutritional yeast, hemp hearts, chickpea flour, minced garlic, cumin, and sea salt until a thick dough forms.
Divide the mixture into four equal portions and shape them into firm, flat patties.
Place the patties on the baking sheet and bake for 20-25 minutes, flipping halfway through, until they are golden and firm.
While the patties bake, steam the broccoli florets over boiling water for 5-7 minutes until they are bright green and tender-crisp.
In a small ramekin, whisk together the tahini and lemon juice with a splash of warm water to create a smooth, pourable sauce.
Plate the crispy patties alongside the steamed broccoli and finish the dish with a generous tahini drizzle.