Food & Cooking Recipes Healthy Recipes Gluten-Free Recipes Roasted Plum Tomatoes 3.8 (28) Close Prep Time: 5 mins Total Time: 35 mins Servings: 4 These roasted plum tomatoes are delicious alone or in salads. Directions Preheat oven to 425 degrees. Place tomatoes on a rimmed baking sheet; toss with oil, thyme, salt, and pepper until coated. Arrange in a single layer, cut sides up. Bake until soft, about 30 minutes.