It's my constant struggle to learn to cook for one and sometimes two cheaply, yet have good food. This book has become on of my best resources. The title of the book is Not Your Mother's Slow Cooker Recipes For Two. All the recipes are for smaller sized crock pots, ranging from one to three quarts (mine is two and a half quarts).
When my son is home, it gives us two good meals with seconds for him on occasion, and lunch for him the next day. When it's just myself, it ends up being three meals, depending on what it is. This means dinner, the leftovers two days later and a freezer container. Since most stews and soups taste better later on, this is perfect for me.
All of the recipes are "from scratch" with no canned soups, and usually use fresh ingredients. I always keep a well (if not overstocked) pantry (include herbs, seasonings, broth and the like), so generally I just need some fresh produce and I am good to go.
Everything I have cooked from this book so far has been delicious!