Lightly pickled blueberries add incredible depth to this grain bowl. Works with quinoa, farro, or freekeh — a satisfying and nutritious meal.
For the pickled blueberries, bring vinegar, water, sugar, and salt to a boil in a small saucepan. Place blueberries in a sterilized jar and pour hot brine over them. Seal and let sit at least 2 hours (preferably overnight).
Whisk together olive oil, lemon juice, salt, and pepper for dressing.
Prepare serving bowls: layer grains on the bottom, then add spinach.
Arrange grilled chicken, avocado slices, and drained pickled blueberries on top.
Sprinkle with walnuts or pumpkin seeds and drizzle with dressing. Serve immediately.