A good substitute for Italian sausage in a recipe is ground turkey or chicken seasoned with Italian herbs and spices like fennel, garlic, and oregano.
A good substitute for sausage in this recipe could be diced mushrooms or crumbled tofu for a similar texture and flavor.
Alton Brown of the Food Network has a delicious and savoury Italian sausage recipe. It and other Italian sausage recipes can be searched for at foodnetwork.com.
The Italian sausage and pepper medley is a good recipe if you would like a spicy sausage dish. You can also try the Pappardelle Mushroom and sausage recipes as well.
There are a number of good recipe ideas that use Italian sausage. One that is quite tasty is Giada De Laurentiis' Breakfast Popovers, which blends Italian sausage, garlic, mozzarella cheese, eggs and onions in a puff-pastry shell. The recipe can be found on the main Food Network website.
A good substitute for chayote in a recipe is zucchini.
Lemon juice is a good substitute for vinegar in a recipe.
A good substitute for Chinkiang vinegar in a recipe is balsamic vinegar.
A good substitute for queso fresco in a recipe is feta cheese.
A good substitute for flounder in a seafood recipe is sole, halibut, or tilapia.
A good sausage BBQ recipe would be the BBQ Sausage and Peppers recipe. It's both spicy and delicious. You can boil the sausage first then grill if you want.
Parsley is a good substitute for cilantro leaves in a recipe.
A good substitute for canned tomatoes in a recipe is fresh tomatoes or tomato sauce.