HEALTHY RECIPES
Seared Tuna Tartare Crispbread Boats with Avocado & Lemon
Medically Reviewed & Fact-Checked by FastingTracker Medical Board • Written by
Aly Owen •
Updated: Sep 21, 2026
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In This Article
Healthy
Finely diced raw-grade tuna tartare seasoned with sesame oil, fresh lime, and soy, served in whole-grain rye crispbread boats with creamy avocado.
⏱ Prep: 10 min🍳 Cook: 15 min
🔬 Nutritionist Note: Raw tuna provides easily bioavailable omega-3s and astaxanthin without the caloric load of cooking fats.
Total Time
25 mins
Phases
Prep: 10m
Cook: 15m
Yield
1 servings
Nutrition
400 kcal
Ingredients
- 180g Sushi-grade yellowfin or ahi tuna, finely diced
- 1/2 Ripe Hass avocado, diced
- 3 Whole-grain rye crispbreads
- 5ml Toasted sesame oil
- 10ml Low-sodium tamari or soy sauce
- 10ml Fresh lime juice
- 1/2 Small shallot, finely minced
- 1 tsp Toasted sesame seeds
Instructions
- Using a sharp knife, carefully dice the sashimi-grade tuna into small 1/4-inch cubes and place into a chilled glass bowl.
- Add minced shallot, low-sodium tamari, toasted sesame oil, and fresh lime juice to the tuna. Gently fold together with a spoon.
- In a separate small bowl, gently toss the diced avocado with a few drops of lime juice to prevent browning.
- Lay out the whole-grain rye crispbreads on a serving board.
- Spoon the seasoned avocado base onto each crispbread, top generously with the tuna tartare, garnish with toasted sesame seeds, and serve immediately.
📚 Scientific Studies & Medical References (5 Sources) ▼
FastingTracker adheres to strict editorial standards, citing peer-reviewed clinical trials and authoritative medical institutions.
- New England Journal of Medicine (2019): de Cabo R, Mattson MP. Effects of Intermittent Fasting on Health, Aging, and Disease. N Engl J Med. 381(26):2541-2551. PubMed 31881139 • DOI
- Cell Metabolism (2014): Levine ME, Suarez JA, Brandhorst S, et al. Low Protein Intake and Periodic Fasting Promote Longevity and Autophagy. Cell Metab. 19(3):407-417. PubMed 24606898 • DOI
- Obesity (Silver Spring, 2018): Anton SD, Moehl K, Donahoo WT, et al. Flipping the Metabolic Switch: Understanding and Applying Health Benefits of Fasting. Obesity. 26(2):254-268. PubMed 29086496 • DOI
- Annual Review of Nutrition (2017): Patterson RE, Sears DD. Metabolic Effects of Intermittent Fasting. Annu Rev Nutr. 37:371-393. PubMed 28715993 • DOI
- Autophagy (2010): Alirezaei M, Kemball CC, Flynn CT, et al. Short-term fasting induces profound neuronal and systemic autophagy. Autophagy. 6(6):702-710. PubMed 20534972 • DOI
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