01 - In a medium saucepan, combine quinoa and water. Bring to a boil, reduce heat to low, cover, and simmer for 15 minutes or until all water is absorbed. Remove from heat, fluff with a fork, and let cool.
02 - Preheat a grill or grill pan over medium-high heat. Lightly oil the grates. Grill pineapple slices for 2–3 minutes per side, until char marks appear and the fruit caramelizes. Remove and let cool slightly, then cut into bite-sized pieces.
03 - In a small bowl, whisk together olive oil, lime juice, maple syrup or honey, Dijon mustard, salt, and pepper until well combined.
04 - In a large bowl, combine cooked quinoa, grilled pineapple pieces, cherry tomatoes, red bell pepper, cucumber, red onion, and cilantro. Drizzle with the dressing. Toss gently to combine.
05 - Taste and adjust seasoning if needed. Serve chilled or at room temperature.