Choose fresh, firm Brussels sprouts and avoid overcrowding the baking sheet for best results. Use fresh citrus juice and zest for maximum flavor. You can prep the sprouts and dressing ahead of time and toss just before roasting. Optional variations include adding toasted nuts, dried fruit, different citrus, spices, fresh herbs, or cheese. Leftovers store well in the fridge for up to 3 days and reheat best in the oven or skillet.