90% of my food shopping is done at Super Queen, the neighborhood supermarket. It's not one of those mammoth markets you find in the States that offer seven different types of Velveeta cheese and 50 yards of soft drink choices. Queen, as we call it, is a small independent market that offers a pretty interesting selection of products for a market its size.
I went out to go buy food for dinner last night and ended up making my Super Queen Pasta. Here's the recipe:
1 can of diced Italian tomatoes (100 yen)
1 jar of alce nero tomato sauce with olives (organic sauce from Italy. 348 yen)
1 package of maitake mushrooms (100 yen)
300 grams ground chicken (148 yen)
some sun dried tomato bits
some fried onion bits
500 grams of spaghetti (100 yen)

Cook the ground chicken in a frying pan with a little olive oil. When the meat is no longer pink, add the diced tomatoes. Throw in some sun dried tomato and fried onion bits. Simmer for a while. Add the nice organic Italian tomato sauce. Break up the maitake mushrooms and add them into the sauce. Simmer a little longer. Add salt and pepper to taste.
Somewhere along the line, boil water and cook the spaghetti.
Combine spaghetti and sauce. We were out of parmesan cheese, but if you have it, pile it on. Fast, easy, relatively cheap and GOOD. Serves 4 (at least).