Greek-Inspired Meatballs with Avocado Tzatziki Sauce

For the Meatballs:

• 1 pound grass-fed ground beef

• 0.75 cup onion, finely diced

• 2 cloves garlic, minced

• 1 teaspoon dried oregano

• 0.5 teaspoon cumin

• 1 teaspoon coriander

• 0.5 tablespoon lemon zest

• 1 teaspoon sea salt

• ground pepper, to taste

For the Tzatziki Sauce:

• 1 avocado (ripened)
• 1 medium cucumber, diced and seeded
• 2 cloves garlic, peeled
• 2 tablespoons onion, diced
• 2 tablespoons lemon juice
• 1 tablespoon fresh dill
• sea salt, to taste
• ground black pepper, to taste