For the shrimp scampi:
Heat grapeseed oil over medium heat in a skillet and add garlic, celery, red bell pepper, green bell pepper, thyme and parsley. Cook for about 5 to 10 minutes until vegetables soften and flavors are integrated. Stir in shrimp and cook until they are just pink and opaque. Do not overcook shrimp. Remove to a platter. Spoon sauce over and sprinkle with parsley.