Tomato-Onion Relish

Prep: 10 min Cook: 13 min Serves: 4 Cuisine: Mediterranean

A vibrant tomato-onion relish with garlic and basil, perfect as a topping or side, offering fresh, tangy, and mildly spicy flavors that suit Mediterranean or casual dining.

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Ingredients

  • 2 large cloves garlic, finely chopped
  • 1 tsp oil
  • 2 onions, cut into thin half rings
  • 2 cups tomatoes, drained and chopped
  • 2 tsp red wine vinegar
  • 2 tbsp chopped fresh basil
  • pinch crushed red pepper flakes
  • pinch black pepper

Instructions

  1. Saute garlic in oil until lightly browned, about 1 to 2 minutes.
  2. Stir in onions and red pepper flakes, and saute for 3 minutes.
  3. Add chopped tomatoes and stir.
  4. Lower heat, cover, and cook for 5 minutes.
  5. Uncover and cook for an additional 5 minutes.
  6. Stir in vinegar and black pepper, then cool.
  7. Refrigerate unless using immediately.
  8. Just before serving, stir in chopped fresh basil.

Tips & Substitutions

For a deeper flavor, consider adding a pinch of sugar to balance the acidity of the tomatoes. If fresh basil isn't available, dried basil can be used as a substitute, though you'll need less—about a teaspoon. Feel free to adjust the crushed red pepper flakes according to your heat preference. This relish also works well as a topping for grilled meats or as a side in Mediterranean recipes.

Serving Suggestions

This Tomato-Onion Relish is fantastic served on toasted bread as an appetizer or alongside grilled meats. It pairs beautifully with Nanny'S Stuffed Green Peppers or can be enjoyed as a vibrant topping on salads. Consider serving it with Spinach Salad With Prosciutto Dressing for a delightful meal.

Storage & Reheating

Store any leftover Tomato-Onion Relish in an airtight container in the refrigerator for up to one week. To reheat, gently warm it in a saucepan over low heat, stirring occasionally. You can also serve it cold, straight from the fridge, as a refreshing condiment.

Nutrition & Diet Analysis (per serving)

Each serving of Tomato-Onion Relish contains roughly 784 calories, with 14g protein, 83g carbohydrates, and 55g fat. It is an excellent source of dietary fiber (113% of the Daily Value), iron (73% of the Daily Value), and calcium (44% of the Daily Value). It also contributes 32g of dietary fiber toward your daily target.

784 kcal 39% DV
Protein Fat Carbs

Macronutrients

Protein 13.5g 27% DV
Total Fat 55.3g 71% DV
Carbs 83.1g 30% DV
Fiber 31.5g 100% DV
Sugar 3.1g 6% DV

Electrolytes

Sodium 91.6mg 4% DV
Potassium 1750.1mg 37% DV

Vitamins & Minerals

Vitamin A 79.9mcg 9% DV
Vitamin C 18.6mg 21% DV
Calcium 568.6mg 44% DV
Iron 13.2mg 73% DV
Diet fit High-fiber

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I make this relish in advance?

Yes, you can prepare the Tomato-Onion Relish a day or two ahead of time. The flavors will meld and intensify as it sits. Just be sure to store it in the refrigerator and stir in the fresh basil right before serving.

Is there a way to adjust the tanginess?

Absolutely! If you find the relish too tangy, you can add a teaspoon of honey or sugar to mellow the acidity. Alternatively, reducing the amount of red wine vinegar can also help to achieve a desired taste.

What can I do with extra tomatoes?

If you have extra tomatoes, consider making a batch of Gazpacho Salad or a fresh Cilantro-Tomato Salad. Both dishes highlight the flavor of tomatoes and are perfect for a light summer meal.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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