You can find organic fusilli at Trader Joe's, I recommend a higher end market for the ground beef (such as Gelson's), and the grated cheddar, you can buy pre-grated or make yourself. Marinara sauce is easy, a big brand name like Classico won't let you down, or go with the Trader Joe's brand for convenience when you're buying the pasta.
Cook pasta (a little over 2 cups) according to instructions on bag - about ten minutes.
Put ground beef into a large pan until brown/cooked through. Drain excess fat. Pour in marinara sauce (1.5 cups) and stir together.
Mix meat sauce with cooked pasta, and make one layer on the bottom of a large Pyrex dish. op with grated cheddar. Repeat until dish is full.
Bake in oven for about 20 minutes at 325°F.
Will last in fridge for about two days - typically four dinner size servings, but as portion sizes are rough, it could serve six if you had last minute guests.
-- Leslie Anne Wiggins