Most of the sauces are preservative free and I can recognize all of the ingredients. I buy only organic milk and free-range eggs. Your priorities may be different but should be in line with your own values. A diverse diet costs less at my local food co-op where I can choose from a wide selection of bulk pastas, grains, legumes and rice, without having to buy more than I need. Look for stores that also let you select only as much produce as you will use.
Farmers markets are often a good source for finding flexible quantities at excellent prices.
Keep snacks simple. Healthier snacks tend to be cheaper snacks. Gourmet chips abound, and though they may be baked not fried none are as healthy as carrot sticks. Make your own convenience foods. Blend your own spice mixes.