Combine lemon juice with sea salt, black pepper, Raw Sattvic mustard in a small bowl. Holding a measuring cup with olive oil above the bowl slowly pour in a sturdy stream, whisking constantly. Continue whisking until dressing becomes slightly creamy. Set aside.
salad
De-core an apple and slice it very thin. Remove pit and skin from avocado and cut it in thin slices.
Toss lettuce with half of the dressing.
Top lettuce with apple, avocado slices, walnuts*, drizzle with the rest of the dressing and serve.
Notes
* To your preference, walnuts can be soaked or roasted.Another serving suggestion: Place dressed salad leaves on individual plates and then top it with apple, avocado, and walnuts.