I think I've seen this thread somewhere else, but I think it bears repeating. In our discussions elsewhere about our PLANNING and PREPARATION, it occurred to me that some of us might have different "staples" in our diets that we could learn from each other. For instance, Sarah turned me onto the Kashi Go Lean, which is now a staple of my diet.
Here's some stuff I keep in my kitchen.
Pantry:
Kashi Go Lean
Whole wheat pasta
Canned whole tomatoes
Tuna
Splenda
Good olive oil
Good balsamic vinegar
Garlic
FRUIT! I try to keep a good supply of apples, bananas, and at least one kind of berry on hand
GeniSoy Protein Powder (tastes like crap if you use too much but good used sparingly)
Real oatmeal (the rough delicious stuff)
Fridge:
1% milk
Lowfat greek yogurt (I like this so much better than the thin watery stuff!)
A good mustard
A good salsa (I use like it's going out of style - gives so much flavor to anything!)
Eggs (mmm. scrambled, hard boiled, omelettes!)
Egg beaters
Lowfat cheddar
A good parmesan (a tiny bit goes a long way and is filling)
Chicken sausage (too much sodium but soooo tasty)
Pickles
Baby spinach (for salads and in recipes)
Freezer:
Skinny Cow Bars (sometimes!)
Homemade chicken stock for cooking (is lower in salt than the canned stuff and has so much flavor!)
Go 'head. Tell me about all the delicious food I'm missing out on!

, I become like a rabid dog. 
Serious stuff.