Honestly my best advice is to force yourself to develop a palette for simply-prepared, lightly-seasoned foods. It might take a few months, but will be great for your bank account and health in the long run. Stock your pantry with salt, pepper, good olive oil, and your favorite vinegar (I like apple cider but maybe you prefer balsamic for example). Learn a few basic cooking techniques like making soup, cooking beans (a crock pot/slow cooker makes it trivially easy), sautee, steam, stir fry, salads. If you have older family members (grandma, etc.) who know how to cook ask them to spend a day together teaching you how to make soup, casseroles, bread, cookies, etc. They will love it!
Then if you really want to take it to the next level, join a CSA (Community Supported Agriculture) from a local farm. They will give you a basket of veggies each week, and it becomes an interesting and fun challenge figuring out what to do with them all. Once you know a few basic cooking techniques and understand how flavors work (combining salt, sweet, sour, bitter, etc.) then you can cook any vegetable even without following a recipe.