You can either:

• Shop at grocery stores that accept bitcoin. Farmers markets are often good places to find BTC vendors, or you may have a “BTC vendor day” in your area. If you look up “Bitcoin in Tulsa, Oklahoma” or wherever you live, there are plenty of sites with maps of vendors that support BTC.
• Use online sites like like bitrefill which let you buy gift cards with your Bitcoin, often with significant discounts. Pretty much any major retailer can be spent at this way
• Use a “bitcoin debit card” which is essentially a custodial bitcoin account you put BTC into and when you swipe your debit card, it automatically converts your BTC to fiat to pay the merchant. This of course requires KYC.
• Worth noting that most grocery stores in the US have coinstars, which you can use to buy and maybe also sell Bitcoin? Many others have Bitcoin atms. I believe these also require some degree of kyc, I haven’t used them before.