Grilled Chicken with Avocado Pesto is a vibrant, creamy, and flavor-packed keto-friendly dish that combines tender, juicy chicken with a rich, low-carb avocado pesto. The pesto is made with healthy fats, fresh herbs, and garlic, making it perfect for a ketogenic diet while adding freshness and complexity to the grilled chicken. This dish is ideal for lunch, dinner, or meal prep and can be served with low-carb sides like zucchini noodles, roasted vegetables, or a leafy salad.
Ingredients
For the Chicken
- 4 boneless, skinless chicken breasts (or thighs if preferred)
- 2 tablespoons olive oil
- 1 teaspoon garlic powder
- 1 teaspoon smoked paprika
- 1/2 teaspoon salt
- 1/2 teaspoon black pepper
- Optional: pinch of red pepper flakes for heat
For the Avocado Pesto
- 1 ripe avocado, peeled and pitted
- 1 cup fresh basil leaves (packed)
- 1/4 cup fresh parsley (optional, for brightness)
- 1/4 cup grated Parmesan cheese
- 1/4 cup pine nuts or walnuts
- 2 cloves garlic
- 2–3 tablespoons lemon juice
- 1/4–1/3 cup olive oil
- Salt and pepper to taste
- Water as needed for thinning
Optional Garnish
- Extra basil leaves
- Grated Parmesan
- Sliced cherry tomatoes (for color, optional)
Equipment Needed
- Grill or grill pan
- Food processor or high-speed blender
- Mixing bowl
- Tongs and spatula
Instructions
Step 1: Prepare the Chicken
- Pat the chicken breasts dry with a paper towel to remove excess moisture.
- In a small bowl, combine olive oil, garlic powder, smoked paprika, salt, black pepper, and red pepper flakes.
- Rub the seasoning mixture evenly over both sides of the chicken breasts.
- Let the chicken marinate for 15–30 minutes at room temperature, or refrigerate for up to 2 hours for deeper flavor.
Step 2: Make the Avocado Pesto
- In a food processor or blender, combine avocado, basil, parsley, Parmesan, pine nuts, garlic, and lemon juice.
- Pulse until roughly blended.
- With the processor running, slowly drizzle in olive oil until smooth and creamy.
- If the pesto is too thick, add 1–2 tablespoons of water at a time to reach the desired consistency.
- Season with salt and pepper to taste.
- Set aside at room temperature while grilling the chicken.
Step 3: Grill the Chicken
Grill Method:
- Preheat the grill to medium-high heat (around 400°F / 200°C).
- Lightly oil the grill grates to prevent sticking.
- Place chicken on the grill and cook for 5–7 minutes per side, or until internal temperature reaches 165°F (74°C).
Stovetop Grill Pan Method:
- Heat a grill pan over medium-high heat.
- Add a drizzle of oil if needed.
- Cook chicken for 5–7 minutes per side, pressing slightly to achieve grill marks.
Step 4: Rest the Chicken
- Remove chicken from the grill and let rest for 5 minutes to retain juices.
- Slice if desired, or serve whole.
Step 5: Serve
- Spoon avocado pesto over each chicken breast generously.
- Garnish with extra Parmesan, fresh basil, or cherry tomatoes if desired.
- Serve immediately with keto-friendly sides such as roasted zucchini, cauliflower rice, or a crisp green salad.
Helpful Tips
- Use ripe avocado for a creamy, smooth pesto.
- Toast pine nuts or walnuts lightly for a deeper, nuttier flavor.
- Make the pesto ahead and store in the fridge for up to 1 day—cover with plastic wrap pressed onto the surface to prevent browning.
- For added richness, stir 1 tablespoon of heavy cream or cream cheese into the pesto.
Storage
- Store leftover grilled chicken and avocado pesto separately in airtight containers in the refrigerator for up to 3 days.
- Pesto can be frozen in small portions, though texture may be slightly softer upon thawing.
Why This Recipe Is Keto-Friendly
- Chicken provides high-quality protein with zero carbs.
- Avocado and olive oil are healthy fats, supporting ketosis.
- No sugar, grains, or high-carb ingredients.
- Flavor-packed without relying on starchy sauces or breading.

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