In a saucepan cook the sausage until almost finished and remove from the saucepan. To the saucepan add 1/4 cup of olive oil and heat. Then add 1 cup of onions, oregano and garlic and saute for 2 minutes. Then add 6 cups of tomatoes, parsley and 1/4 cup of basil. Simmer for 5 minutes than add back to the sausage and simmer for 10 minutes then add the peas. Cook the pasta in a large pot of boiling salted water until al dente. Toss pasta with the sausage, add 1/2 cup of basil and season with salt and pepper.
Cut the kernels off the ears of corn and in a large bowl mix the corn with, remaining onion, 6 chopped tomatoes, basil and olive oil. Season with salt and pepper.