Preheat oven to 425℉/220°C. Line a rimmed baking sheet with greased parchment paper.
Add cauliflower and carrots in a single layer on the sheet and coat with oil and spices.
Cook for 25 minutes. Remove, add lemon juice and parsley, then cook another 5-10 minutes until golden brown.
Line another baking sheet with parchment paper.
Rinse, drain, and dry chickpeas, discarding loose skins.
Toss chickpeas with 1 tablespoon olive oil and spices; add to half of baking sheet.
Dice sweet potatoes, toss with 1 tablespoon olive oil, salt and pepper; add to other half.
Roast for 20-28 minutes until chickpeas are golden and sweet potatoes are fork-tender.
While veggies roast, blend tahini, yogurt, lemon juice, olive oil, garlic, cumin, and salt until smooth.
Add water if a thinner sauce is preferred.
To assemble, spread tahini yogurt sauce in a bowl.
Top with arugula, sweet potatoes, cauliflower, carrots, and roasted chickpeas.
Add favorite toppings and a squeeze of lemon. Enjoy!