Preheat over to 425 degrees F. Line a sheet pan with parchment paper.
Chop the cauliflower down to the florets. Remove the stems and cores.
In a medium bowl, pour oil, salt, and salt-free seasoning. Stir until well combined. Add the cauliflower and ensure it is coated with oil.
Spread cauliflower out on sheet pan. Place in oven for 60 minutes. Flip or rotate cauliflower every 20 minutes until the cauliflower is golden brown. They can be slightly blackened, but do not burn too many.
Love snacking between the meals? Here's something that is healthy and can be munched on without worrying about the carbs. Watch the chef prepare this Roasted Cauliflower Popcorn that is sure going to come handy.