Simplest Tomato Bruschetta/ Pasta Sauce
In a 9x13 pan dump 2 big cans of whole tomatoes (or use fresh ones if its summer), a handful of basil, a couple onions, a bunch of garlic, salt and pepper. Drizzle with olive oil. Roast in the oven for as long as you've got at 300 degrees, or at the very least an hour for 350.
Dump it all in the food processor and whir it quickly.
When it is cold top tiny toasts with it, or toss it immediatley with hot pasta and sprinkle with parmesan cheese.
You could totally make this in the crock pot on low, and blend it up with the immersion blender, and then you'd have even less in the way of dirty dishes, and you could make a whole bunch at once.