Preheat oven to 400°F and line a baking sheet with parchment paper.
Place the cauliflower florets in a bowl. Toss with minced garlic, lemon juice and olive oil until cauliflower is well coated.
Spread the florets out into a single layer on prepared baking sheet.
Sprinkle with salt and pepper.
Roast in the oven for 25 to 30 minutes, or until the tops are lightly brown. Use a fork to test for doneness; the tines should easily pierce the cauliflower when done.
Remove the cauliflower from the oven a