Roast the almonds: Preheat the oven to 350°F and line a baking sheet with parchment paper. Place the almonds on the sheet and toss with tamari. Bake for 10 to 14 minutes or until browned. Remove from the oven and let cool for 5 minutes.
Assemble the salad. In a large bowl toss the lettuce with a few spoonfuls of the lemon vinaigrette. Add the cucumber, parmesan, pepitas, avocado, and tamari almonds. Drizzle with more dressing and top with microgreens. Season to taste with flaky sea salt, if desired.