- In a large pot, bring water to a boil and cook off thin spaghetti. Preheat oven to 200 degrees F. 
- While the water is boiling, cook diced onions and garlic in 1 T extra virgin olive oil until onions are translucent. Add in the marinara, basil, and seasonings and bring to a light boil. 
- Slice the top third of the tomato, reserving the top for garnish as a "top hat." Scoop the insides of the tomato out and add into the marinara sauce that is by now boiling. 
- Once pasta is cooked and drained, lightly toss pasta with marinara. Swirl with fork and gently place portioned pasta into tomato shells. Put tomatoes in a glass casserole dish that will hold up your tomatoes and cook in oven for 10-15 minutes. Top with additional sauce and top with Parmesan if desired. Serve with tops on and enjoy!