01 - Rinse quinoa (or grain of choice) under cold water. In a medium saucepan, bring water or low-sodium chicken broth to a boil. Add grains, reduce heat to low, cover, and simmer until tender and liquid is absorbed, about 15 minutes for quinoa. Fluff with a fork and set aside.
02 - Preheat grill or skillet over medium-high heat. Rub chicken breasts with olive oil, smoked paprika, garlic powder, salt, and pepper. Grill or pan-sear for 5 to 7 minutes per side until fully cooked through and juices run clear. Remove from heat and let rest for 5 minutes, then slice thinly against the grain.
03 - Divide cooked grains evenly among four bowls. Layer each with baby spinach or mixed greens, halved cherry tomatoes, diced cucumber, shredded carrots, thinly sliced red onion, and sliced avocado.
04 - Arrange sliced chicken breast on top of the vegetables in each bowl.
05 - In a small bowl, whisk together olive oil, lemon juice, honey or maple syrup, Dijon mustard, salt, and pepper until emulsified and smooth.
06 - Drizzle dressing generously over each bowl. Top with crumbled feta or goat cheese if desired, and sprinkle with freshly chopped herbs.
07 - Serve immediately. For meal prep, store grain, vegetable, chicken, and dressing components separately in airtight containers and assemble when ready to eat.