You could try the
American Heart Association's Quick and Easy Cookbook. I think most of the ingredients are pretty easy to find. You do sometimes need to increase the spices and I find that the portions are sometimes a little small (but the calories are usually low enough that you can increase the portions without it being a problem). But, with these adaptations, the recipes I've made have all come out well and they are really easy. I think the book is geared more towards seniors that don't like spicy food and need to eat small portions, so you have to adapt it a little for active adults.
I also have the
Better Homes and Gardens Healthy Family Cookbook and most of the recipes I've made from it have come out well. Again, I think most of the recipes call for fairly widely available ingredients; certainly nothing as exotic as some of the ingredients Cooking Light calls for. My biggest complaint is that BHG is often times way way off on the nutritional info (including the calories). If you are strict about counting calories like I am, you really have to re-calculate the nutritional info for every recipe (and do it before you even buy the ingredients--I've found them to be off by 50 to 100 calories per serving sometimes which is often a deal-breaker for me in terms of making the recipe).