Pour 1 tablespoon of balsamic vinaigrette into the bottom of four quart-sized mason jars.
Divide the diced roasted beets equally among the jars as the base layer.
Add a layer of chickpeas followed by a layer of cooked quinoa to each jar.
Divide the walnuts, pumpkin seeds, and crumbled goat cheese across the jars.
Pack the baby spinach into the remaining headspace of each jar.
Secure the lids tightly and refrigerate for up to 4 days.
To serve, shake the jar vigorously or invert into a large bowl to distribute the dressing.