Frozen Brussels sprouts will simply not be as crisp as if you roasted fresh Brussels sprouts, but they are a zero-prep, affordable option! If texture is very important to you, I recommend my ovenRoasted Brussels SproutsorSautéed Brussels Sprouts.
TO STORE: Place leftover Brussels sprouts in an airtight storage container in the refrigerator for up to 4 days.
TO REHEAT: Rewarm leftovers on a baking sheet in the oven at 350 degrees F until hot. You can also reheat the sprouts in the microwave.
PARCHMENT PAPER: Check your brand of parchment paper, to make sure it is oven safe up to 450 degrees F. Aluminum foil is another alternative.