- Cut tops off of the tomatoes (large enough to use as a cap). 
- Scoop out inside ribs and pulp, reserving for later use. 
- You should have a tomato cup suitable for filling and its cap, both of which will be used. 
- In a medium saucepan over medium heat, sauté shallot and garlic in 1 T olive oil until tender (2-3 minutes). 
- Add enough chicken stock to the reserved tomato pulp to equal two cups. 
- Add tomato pulp/chicken stock mixture and barley to saucepan. 
- Bring to a boil and reduce to a simmer. 
- Salt and pepper to taste, cover and simmer until barley is al dente, about 15 minutes. 
- Preheat oven to 400 degrees F. 
- In a small skillet over medium high heat, sauté sausage, breaking up with a wooden spoon until browned. 
- In a large mixing bowl, combine barley, sausage, parsley, and parmesan cheese. 
- Check seasonings and adjust as necessary. 
- Salt & pepper the insides of tomatoes, then fill with barley mixture. 
- Be sure to not pack the stuffing tight. 
- Set stuffed tomatoes aside. 
- Use remaining olive oil to grease 11x7 baking dish. 
- Add extra barley mixture to the bottom of baking dish and spread out evenly. 
- Add stuffed tomatoes to baking dish, nesting down into the stuffing. 
- Replace the tomato caps and drizzle another ¼ C of chicken stock over contents of the baking dish. 
- Roast for 30 minutes, until tomatoes are soft and the skins start to split.