Rinse your chosen grain thoroughly under cold water. In a medium saucepan, heat 1 tablespoon olive oil over medium heat. Add the grain and toast for 1-2 minutes, stirring frequently to enhance the nutty flavor.
Add the vegetable broth or water and salt, bringing to a boil. Reduce heat to low, cover, and simmer according to package instructions (typically 15-20 minutes for quinoa, 25-30 minutes for farro or brown rice). The grain should be tender but still have a slight bite.
While the grain cooks, prepare your fresh ingredients. Slice the cherry tomatoes in half, dice the cucumber into bite-sized pieces, and thinly slice the red onion. Rinse chickpeas thoroughly under cold water.
In a small bowl, whisk together olive oil, lemon juice, minced garlic, honey or maple syrup, and Dijon mustard until well combined. Season with salt and pepper to taste.
Once the grain has cooled slightly (about 5 minutes), it's time to build your bowl. Start with a base of the cooked grain, then arrange the mixed greens, chickpeas, cherry tomatoes, cucumber, and red onion in sections around the bowl.
Carefully place sliced avocado on top, sprinkle with crumbled feta cheese and pumpkin seeds. Drizzle with the prepared dressing just before serving.