Preheat your oven to 400°F (200°C).

Spread the diced bacon on a baking sheet and cook in the preheated oven for about 10 minutes, until it starts to crisp.

Remove the bacon from the oven and set aside, leaving the bacon fat on the baking sheet.

In a large bowl, toss the broccoli florets with olive oil, salt, pepper, and garlic (if using).

Spread the seasoned broccoli on the baking sheet with the bacon fat.

Roast for about 15-20 minutes, stirring halfway through, until the broccoli is tender and slightly charred at the edges.

Remove from the oven and sprinkle the crispy bacon over the broccoli.

Toss everything together and serve hot.