Ensure avocado is ripe; if avocado is firm, ripen in a paper bag, 1-2 days; slice avocado; preheat oven to 400° + lightly oil a small baking dish

Thinly slice onion; wipe mushrooms clean + thinly slice; heat 2 tbsp oil in skillet over high, add mushrooms, onions + cook undisturbed 3 min; sauté 3-4 min til browned + tender, season with salt/pep + set aside

Heat 1 tbsp oil in skillet over med-high; add half of broccoli, salt/pep + sauté 4-5 min til lightly browned; add 2 tbsp water, reduce heat, cover + steam 3-5 min more til tender

Add veggies to baking dish + top with 6 tbsp sauce; bake 12-15 min til hot then garnish with avocado