Preheat the oven to 475°. Place a rimmed baking sheet on the center rack of the oven and allow to heat for at least 10 minutes. Meanwhile, cut the broccoli lengthwise into 1/3-inch-thick slabs, reserving any florets that fall off.
In a large bowl, toss the broccoli with the olive oil and season with salt and pepper. Carefully arrange in a single layer, cut side down, on the hot baking sheet. The broccoli should sizzle. Roast for 15 to 20 minutes, turning halfway, until browned in spots and crisp-tender.
In a large skillet, cook the bacon over moderate heat, turning once, until browned and crispy, 8 to 10 minutes. Transfer the bacon to a paper towel-lined plate to drain; finely chop.
Pour off all but 2 tablespoons of the bacon fat. Add the breadcrumbs to the skillet with the bacon and cook over moderately-low heat, stirring occasionally, until golden brown and crispy, 3 to 5 minutes. Stir in the bacon and remove from the heat.
In a small bowl, whisk the tahini with the lemon zest, lemon juice, and garlic. Gradually add warm water, one tablespoon at a time, until the tahini is a thin pourable sauce. Season with salt and pepper.
Arrange the broccoli on a large plate or platter. Drizzle with the lemony tahini and then generously scatter the bacon breadcrumbs and date coins over the top. Garnish with more fresh lemon zest and a couple grinds of black pepper. Enjoy!
To make fresh bread crumbs, take any stale or day-old bread and pulse it in a food processor until finely chopped. You can also do this by hand with a knife. I like to keep a bag of these in my freezer and pull out the amount I need as I’m cooking—the breadcrumbs defrost quickly. You can use store-bought bread crumbs here, but you will not get the same crunchy texture.
To cut your dates into coins, remove the pit from the top of the date with pliers or strong tweezers. (Tutorial here.)
To get perfectly browned and crisp-tender broccoli, preheat your baking sheet in the oven and give your broccoli lots of space so it doesn’t steam while cooking. If you choose to double this recipe for a larger crowd, spread everything out on two baking sheets.