Preheat oven to 425°; chop cauliflower into 1-inch pieces; cut zucchini into a large dice + cut onion into quarters; spread veggies on a sheet pan, drizzle with 3 tbsp oil + season with salt/pep + seasoning packet; roast 10 min, then flip veggies over + roast 5-10 min more until browned + tender

Meanwhile, tear corner of grains to vent + heat in microwave 90 sec (careful—it'll be hot!); if using a skillet, warm 2 min with 1 tbsp water; divide to bowls

Divide roasted veggies to bowls then dollop with ranch