This keto avocado, tomato and feta salad tossed with a light, tangy vinaigrette is a fresh, low-carb option that comes together in minutes. It’s perfect as a quick lunch, a simple side dish, or a light dinner. Enjoy!

In about ten minutes you can have this bright, flavorful keto avocado tomato feta salad on the table. The recipe relies on a short list of fresh ingredients and a simple vinaigrette that enhances the natural flavors without masking them. Quick recipes like this prove that simplicity often wins—fresh produce, good oil, a splash of acid, and a little seasoning are all you need. I love testing new recipes and sharing family favorites; I hope this one becomes a regular for you.

Let’s talk about the vinaigrette for this keto avocado tomato feta salad!
A vinaigrette is essentially an emulsion of oil and acid, plus seasonings; it’s one type of dressing among many. While creamy dressings use ingredients like mayonnaise, yogurt, or buttermilk, vinaigrettes are lighter and typically made with an oil and vinegar or lemon juice, finished with herbs and spices. For this salad I use olive oil for its flavor, though avocado oil is a fine alternative. The dressing here is quick to whisk together and will work equally well on leafy greens or other vegetable salads when you need a low-carb option.
Avocados, tomatoes, and feta…oh my!
This salad uses fresh, low-carb ingredients that pair naturally: creamy avocado, juicy tomato, a little red onion for bite, and crumbled feta to finish. I keep the red onion to just a tablespoon to avoid adding extra carbs while still getting a sharp flavor note. If you prefer a milder onion flavor, soak the diced onion in cold water for about five minutes and then drain; this softens the sharpness without removing the taste. Avocados bring richness and healthy fats, tomatoes add color and acidity, and feta offers a salty, tangy contrast that complements both.

More quick keto salad ideas
- BLT Keto Tuna Salad
- Keto Antipasto Salad
- Keto Mexican Coleslaw
- Keto Pepperoni Pizza Chicken Salad
Helpful Hints:
- Soak raw red onion in cold water for 5 minutes to mellow the bite before adding to the salad.
- This recipe yields two servings but can be doubled or tripled to feed a crowd.
- For best texture, toss the salad just before serving so the avocado keeps its shape and doesn’t brown quickly.
Main Kitchen Equipment and Utensils:
- Small mixing bowl for the vinaigrette
- Medium mixing bowl for combining the salad
- Whisk or fork
- Knife and cutting board
Splash of Encouragement:
When you serve others, you are giving them a priceless gift.
Keto Avocado Tomato Feta Salad
This bright, low-carb salad combines ripe avocado, tomato, a touch of red onion, and crumbled feta, all tossed in a simple vinaigrette. It’s fresh, satisfying, and ready in ten minutes—ideal for busy weeknights or a light weekend meal.
Ingredients
For the vinaigrette dressing:
- 2 tablespoons olive oil
- 1 tablespoon red wine vinegar
- ¼ teaspoon Dijon mustard
- ⅛ teaspoon garlic powder
- ⅛ teaspoon dried oregano
- ⅛ teaspoon salt
- ⅛ teaspoon black pepper
For the salad:
- 1 tablespoon red onion, diced
- 2 ripe avocados, diced
- 1 Roma tomato, chopped (or 1 cup cherry tomatoes halved)
- ¼ cup crumbled feta cheese
Instructions
- Make the vinaigrette: In a small bowl, whisk together the olive oil, red wine vinegar, Dijon mustard, garlic powder, oregano, salt, and pepper until blended. Set aside.
- Prepare the onion: Place the diced red onion in a small bowl, cover with cold water, and let sit for about 5 minutes to reduce sharpness. Drain well.
- Dice the produce: Cut the avocados and tomato into bite-sized pieces and place them in a medium mixing bowl.
- Add onion: Once drained, add the softened red onion to the bowl with avocado and tomato.
- Toss with dressing: Drizzle the vinaigrette over the salad and gently toss to combine, taking care not to mash the avocado.
- Finish and serve: Sprinkle crumbled feta over the top and serve immediately.
Nutrition Information (per serving)
Yield: 2 servings. Serving Size: 1.
Calories: 367 • Total Fat: 35g • Saturated Fat: 7g • Unsaturated Fat: 26g • Cholesterol: 17mg • Sodium: 363mg • Carbohydrates: 12g • Fiber: 8g • Net Carbs: 4g • Sugar: 3g • Protein: 5g
Nutrition information is an estimate and will vary depending on product brands and portion sizes.


