Rosemary Garlic Oven-Roasted Tomatoes

June 3, 2020

Got bland out-of-season tomatoes? Punch up the flavor with these rosemary garlic oven-roasted tomatoes! They’re quick and easy to make and can be enjoyed in a variety of ways.

oven roasted tomatoes in white ramekin on red and white paisley tablecloth
*Originally published February 2014. Updated June 2020.* This page contains affiliate links. See below for full disclosure statement.

Late summer when tomato season is at it’s peak, I can pop raw cherry tomatoes in my mouth without adding anything to them. I also love to eat raw summer tomatoes in a caprese salad with mozzarella, basil, and some aged balsamic. But for most of the rest of the year, raw tomatoes just don’t taste quite as good. I’ll keep some tomatoes on hand to have a slice on a sandwich or to top my salads, but for the most part, outside of the summer months I cook tomatoes.

Roasting Boosts Flavor

These Rosemary Garlic Oven-Roasted Tomatoes are my favorite way to enjoy out-of-season tomatoes. They were inspired by my mom, who used to make a similar recipe when I was growing up. It was actually the only way I would eat tomatoes in my younger years!

As with all vegetables, roasting brings out the flavor and sweetness that is tucked inside sometimes-bland produce. Plus, when the tomatoes are cooked, the antioxidant lycopene, which is most often talked about in relation to tomatoes, is more readily absorbed than it is when eaten raw.

roasted tomatoes on baking sheet

A Simple Side Dish

These oven-roasted tomatoes are so simple to make and only require a few simple ingredients. I generally use beefsteak tomatoes, tomatoes on the vine, or plum tomatoes when I make this recipe, but you can follow the same recipe using cherry, grape, or Campari tomatoes too.

To make this side dish, I slice the tomatoes about half an inch thick, toss with olive oil, and then spread on a parchment paper-lined baking sheet. You can roast them just like that, or to boost the flavor you can add freshly minced garlic and fresh or dried herbs. (If you’re using cherry or grape tomatoes you would simply cut them in half through the stem end.)

roasted tomatoes in white ramekin

Ways to Use Oven-Roasted Tomatoes

Once cooked, these oven-roasted tomatoes can be kept in a sealed container for a few days and enjoyed in a variety of ways. Some of my favorites include adding them to a grilled cheese sandwich, topping a pizza, adding to a snack platter with parmesan crisps and nuts, pairing with simply grilled or baked meat, chicken, or fish, and of course serving as a side dish. Here are some of my recipes they go best with:

snack platter with pistachios, roasted tomatoes, and cheese crisps

Roasted Tomatoes recipe

Rosemary Garlic Roasted Tomatoes

Yield: 4 servings
Prep Time: 8 minutes
Cook Time: 20 minutes
Total Time: 28 minutes

Just because tomatoes aren't in season doesn't mean you can't enjoy them all year round and reap their nutritional benefits. Roasting them brings out their sweetness and fresh garlic and herbs make them a savory delight!

Vegan, Nut-Free, Gluten-Free, Kosher


  • 2 pounds beefsteak, on-the-vine, or plum tomatoes, sliced horizontally 1/2" thick
  • 1 tablespoon olive oil
  • 3 large garlic cloves, minced
  • 1 tablespoon freshly chopped rosemary or thyme (or 1 teaspoon dried)
  • 1/4 - 1/2 teaspoon Kosher salt
  • Freshly ground pepper, to taste


  1. Preheat oven to roast at 400 degrees F. Line a baking sheet with parchment paper and set aside.
  2. In a mixing bowl, toss the sliced tomatoes with olive oil.
  3. Spread the sliced tomatoes in one layer on the prepared baking sheet. Sprinkle tomatoes with minced garlic, rosemary, salt, and pepper.
  4. Roast on the top shelf of the oven for 15-20 minutes, until the tomatoes are wilted and browned around the edges. To ensure even cooking, rotate the baking sheet halfway through cooking time.

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Nutrition Information:
Yield: 4
Amount Per Serving: Calories: 77Total Fat: 4gSaturated Fat: .5gTrans Fat: 0gCholesterol: 0mgSodium: 292mgCarbohydrates: 10gFiber: 3gSugar: 6gProtein: 2g

Nutrition information was calculated by Nutritionix. It may not be 100% accurate.

What would you eat with these oven-roasted tomatoes?

Share with me in the comments below!

vegan gluten free quick and easy oven-roasted tomatoes

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  1. These look delicious Jessica! I am a sucker for tomatoes in any shape, size, form, etc. I too buy them in the off season, although usually I stick w/ the cherry tomatoes which tend to have more flavor. Definitely want to make these-just need to get my oven fixed first 🙂

    1. Thanks EA! Cherry tomatoes are my go-to – i love using them in my tomato jam also! Great on burgers! Hope your oven gets fixed soon! At least it will stay cooler in your house without it running!

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