Weigh and prepare all ingredients for one serving. Buckwheat flour and egg quantities are measured as listed; dry grains and flours are weighed dry.
Whisk flour, egg and water into a thin batter. Cook two crepes in a nonstick skillet; warm the fillings separately and fold inside.
Add strawberries (110 g) and greek yogurt (75 g) at the stage described above, cooking raw proteins fully and heating any ingredients that need cooking.
Taste, adjust seasoning with salt and pepper if desired, and serve. Refrigerate leftovers promptly.