Oven-Roasted Brussels Sprouts – – Brussels sprouts (buy them on the stalk if possible), olive oil, salt and pepper, Preheat oven to 350 degrees F. ; Wash the Brussels sprouts and peel away the outside leaves of each. ; Cover a large sheet pan with a layer of olive oil and spread the cleaned and trimmed Brussels sprouts in a single layer. Salt and pepper. Roast for about 30 minutes until tender and caramelized.; –