Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper.
Rinse and thoroughly pat the chickpeas dry, then toss with 1 teaspoon of olive oil and a pinch of sea salt.
Roast the chickpeas for 20 minutes, shaking the pan halfway through, until they are golden and crunchy.
Season the turkey breast with salt, pepper, and dried oregano, then grill over medium-high heat for 5-6 minutes per side until the internal temperature reaches 165°F.
In a large serving bowl, combine the mixed greens, cooked quinoa, sliced cucumber, and halved cherry tomatoes.
Whisk the remaining 1 teaspoon of olive oil with a squeeze of fresh lemon juice to create a light dressing and toss it with the salad base.
Slice the grilled turkey breast into strips and arrange them over the salad.
Top the dish with the roasted chickpeas and fresh avocado slices before serving.