Start by preheating your oven to 375 degrees Fahrenheit. While it heats, chop your Brussels sprouts, carrots, and sweet potato into similar-sized pieces so they cook evenly together on the pan.
Spread the vegetables across your baking sheet and drizzle with avocado oil. Sprinkle on the garlic powder, smoked paprika, salt, and pepper, then toss everything together until well coated before roasting for about 30 minutes.
While the vegetables roast, cook your wild rice or brown rice according to the package instructions. I like to start this at the same time as the oven so everything finishes together.
In a small bowl, combine the tahini, balsamic vinegar, and maple syrup. Whisk until smooth, then slowly add water a little at a time until the dressing reaches a drizzly, pourable texture.
Around the 15-minute mark, pull your baking sheet out and give the vegetables a quick toss. This helps them roast evenly on all sides instead of just browning on the bottom.
Once everything is ready, layer fresh greens into each bowl first, then add a scoop of warm rice and your roasted vegetables on top. Finish with a generous drizzle of dressing and a sprinkle of pepitas before serving.