In a small bowl whisk together oil, balsamic, 2 tbsp lemon juice, garlic powder and salt. Use 3 tbsp of the mixture to coat the brussels and toss until evenly combined.
Place the brussels in the basket of the air fryer. Set the temperature to 370 and the timer to 20 minutes.
After 10 minutes, gently toss the brussels sprouts. Now top with onion and bacon. Cook for another 10 minutes (may need to check after 8 minutes), and remove to a bowl.
Add avocado and fresh basil to the brussels sprouts, then toss with the remaining balsamic mixture. Serve hot!
Simplified version
CALORIES 290kcal FAT 23g SATURATED FAT 5g CHOLESTEROL 15mg SODIUM 469mg POTASSIUM 651mg CARBOHYDRATES 16g FIBER 6g SUGAR 5g PROTEIN 7g VITAMIN A 892% VITAMIN C 104% CALCIUM 51% IRON 2%