Cook the quinoa: rinse dry quinoa in a fine-mesh sieve under cold water until the water runs completely clear - minimum 60 seconds of rinsing. This removes the saponins that cause bitterness. Transfer to a medium saucepan. Add bone broth and salt. Bring to a boil over medium-high heat, then reduce to low, cover, and simmer 15 minutes until all liquid is absorbed. Remove from heat and rest covered 5 minutes. Uncover and fluff with a fork. Spread on a sheet pan to cool completely - do not dress warm quinoa.
Make the dressing: whisk together avocado oil, lime juice, mashed garlic, zero sugar honey, cumin, smoked paprika, salt, and pepper in a small bowl until fully emulsified. Taste - it should be bright, slightly savory, with a back note of sweetness from the honey. Adjust salt and lime as needed.
Assemble: in a large bowl combine cooled quinoa, drained black beans, drained corn, red onion, cherry tomatoes, and cilantro. Pour dressing over and toss well to coat everything evenly.
Add avocado last: add diced avocado and fold in gently - 3-4 strokes only. You want pieces not mash.
Chill: cover and refrigerate minimum 2 hours before serving. The dressing melds into the quinoa and beans during this time and the flavor deepens significantly.
Stir gently before serving and taste for salt and lime. Add a squeeze of fresh lime just before plating.