01 - Preheat the oven to 425°F. Line a baking sheet with parchment paper.
02 - Toss the diced sweet potatoes with olive oil, smoked paprika, cumin, salt, and pepper until evenly coated. Spread in a single layer on the prepared baking sheet. Roast for 25 to 30 minutes, flipping halfway through, until golden brown and fork-tender.
03 - Combine the rinsed quinoa, water, and salt in a saucepan. Bring to a rolling boil over medium-high heat, then reduce to low, cover, and simmer for 15 minutes. Remove from heat and let steam for 5 minutes with the lid on. Fluff gently with a fork.
04 - In a mixing bowl, combine the parsley, cilantro, oregano, minced garlic, red chili (if using), red wine vinegar, olive oil, salt, and pepper. Stir well and set aside to allow the flavors to meld.
05 - Whisk together the tahini, lime juice, maple syrup, and salt until smooth. Gradually add water, one tablespoon at a time, until the sauce reaches a pourable, drizzle-friendly consistency.
06 - Divide the fluffy quinoa among four bowls. Arrange the roasted sweet potatoes, halved cherry tomatoes, spinach or arugula, sliced avocado, and toasted pumpkin seeds over each portion.
07 - Drizzle each bowl generously with chimichurri and lime tahini sauce. Serve immediately while the sweet potatoes are still warm.