Add quinoa, beets, broccoli and chickpeas to a sheet pan lined with parchment paper. Coat in oil, salt, pepper and garlic powder. Bake for 30-35 minutes, until chickpeas and quinoa are crisp.
Add all dressing ingredients to a food processor or blender. Blend until smooth.
Divide out filling and lettuce between two bowls. Pour dressing over both bowls and serve.