Roasted Broccoli Roast these until they are fork-tender. Ingredients 2 heads broccoli, trimmed and washed Zest of 1 lemon ¼ cup olive oil 1 teaspoon onion powder 1 1/2 teaspoons lemon pepper 1 teaspoon garlic powder 1/2 teaspoon or so salt Preheat oven to 425F. Mix together everything except broccoli. Place broccoli and oil mixture into zip baggie; zip and shake to coat. Line a cookie sheet with parchment paper and then place coated broccoli on top in one layer. Bake for 10-15 minutes until tender and slightly charred.