1. Preheat oven to 450 degrees
2. Place Sweet Potatos on a baking sheet and bake until tender (45 min)
3. After Sweet Potatos have baked for about 25 minutes, preheat grill to medium.
4. Squeeze half the lemon over salmon fillets and brush with olive oil. Place salmon on grill and cook until opaque throughout, about 5 minutes on each side.
5. While salmon is cooking, lightly coat a large skillet with butter-flavored cooking spray and place over medium-high heat. Add mushrooms and saute' for 3 minutes. Add spinach and saute' until wilted, about 3 more minutes.
6. Place a portion of salmon on a bed of spinach along with a Sweet Potato on each plate. Squeeze remaining lemon over salmon and spinach.