Portobello Mushroom Burgers

Name: Portobello Mushroom Burgers
Ingredients: 1 whole Sweet Potato, Cut Into Thin Sticks; 3 Tablespoons Extra Virgin Olive Oil, Divided; 1 teaspoon Ground Cumin; 1 teaspoon Chili Powder; 4 sprigs Fresh Thyme, Divided (2 Sprigs Chopped); ½ teaspoons Coarse Salt; ½ teaspoons Freshly Ground Pepper; 1 Tablespoon Fresh Rosemary, Chopped; 2 cloves Garlic, Minced; ¼ cups Fresh Lemon Juice; 2 whole Portobello Mushrooms, Lightly Cleaned Of Any Grit Or Dirt; 2 whole Peaches, Halved And Pits Removed; 2 whole Hamburger Buns (of Your Choice); ½ cups Cherry Tomatoes; 1 whole Scallion, Sliced; 1 cup Arugula