Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
Slice the sweet potato into thin matchsticks to create fries.
Toss the sweet potato fries with one teaspoon of olive oil, sea salt, and black pepper, then spread them in a single layer on the baking sheet.
Roast the fries for 20-25 minutes, flipping halfway through, until they are golden and crisp.
While the potatoes roast, season the chicken breast with your favorite dry herbs and grill over medium-high heat for 6-7 minutes per side until fully cooked.
Let the chicken rest for 5 minutes before slicing it into strips.
In a small bowl, whisk together the remaining teaspoon of olive oil and the lemon juice to create a light vinaigrette.
Combine the mixed greens, cherry tomatoes, and cucumber in a large bowl and toss with the vinaigrette.
Top the salad with the grilled chicken strips and pumpkin seeds, and serve the roasted sweet potato fries on the side.