If you Google "SNAP recipes" or "WIC recipes" you will get many sources of delicious recipes with high nutritional value, and all of them are inexpensive. SNAP is the Supplemental Nutrition Assistance Program (food stamps) and WIC is the Women Infant and Children under 5 program. Both are government programs that have guidelines on what foods are acceptable to be eligible. Some items are whole grain breads, peanut butter, milk, eggs and chicken. You will not see soda pop or chips on the list of allowed foods!
You do not have to participate in these programs to get access to the recipes. They are for the taking on the website. I took a couple of screenshots to show examples. I have tried some recipes, and have been very pleased. These programs use foods in season, and there is a great variety of menus.