How can I budget $200 for groceries when I spent $150 already?

Easy, just hold on to the $50 that's left.

I plan all my grocery shopping before I leave the house. I use the various supermarket chains to see what is on sale, and I then plan meals around those foods, and as such, I have no problem staying within $150 a month for my meals.

It's all a matter of management, and of paying attention BEFORE you spend.

Go to indoor covid infested restaurants eat a meal then don't pay and run like hell .

I have always paid rent first and pleasantly been informed at the bank the is most important the rest of the time can be spent taking care of everything else.

First of all, plan your meals, and do so before you start your shopping. Check your sale ads (pretty much all are available online these days) and plan your menus around what’s on sale. Recognize that buying in bulk can be cheaper in the long run if you can manage it. A family pack of ground beef can be 20-50 cents cheaper per pound than a single pound package is, so buy it in the bigger package, divide it up at home and freeze what you aren’t going to use right away. 

If you have $200 for a months worth of groceries, that’s about $50 a week. While that’s not a lot of budget, it’s very manageable for a single person. You aren’t going to eat fancy food, and if that’s your total food budget for the month you don’t have much wiggle room for splurges, like eating out, fancy coffees, or drinks with friends. But from a grocery standpoint, there are lots of cheaper eating options available to you. You can make things in larger quantities and either eat for several days, or freeze smaller portions and thaw and reheat later in the month. Meat is expensive, but other protein sources like eggs aren’t. You can get a dozen eggs and a loaf of bread for less than $5 total, and that covers your breakfasts for a week or longer. Dried beans and rice are cheap, and last a long time. Cooking them is fairly simple and you can jazz up the flavor with spices and seasonings. Again, spices can be kind of expensive as an upfront purchase, but they should last you for quite some time. Learn things like how to roast a whole chicken. Whole chickens are usually less than $1/pound (compare to chicken breasts which can be $4/pound), so you can roast one, eat part of it that day, pick the meat off the bones and use it for sandwiches, chicken salad, pot pie, or a stew. You can boil the bones with some veggies and make chicken stock for soup. 

And pay attention to what you are spending your money on. Convenience foods and prepared things are much more expensive than doing it yourself. And drinking anything other than tap water is probably costing you more than you realize.

Only buy true essentials the first week such as eggs, OJ, beef, chicken, fruits, vegetables and don't spend more than $70. Second week you can splurge on junk food like candy, ice cream, fried chicken, pizza but don't spend over $30. Then repeat for weeks 3 and 4.

I don't really budget, I'm just a miser lol, but my girlfriend cashes out her weekly (self-imposed) allowance. What she thinks she will need for that week. she does it for her non-essentials, but there isn't any reason for you to try it with this. 

If you combined that with leaving your debit card at home when you shop, the it'll make you consider your spending! Good luck. 

Take a calculator to the grocery store with you and add up what you put in your cart.  When you get to $50 you need to stop for the week.

Check sale papers, use coupons and make lists of weekly needs. Don't splurge on unneeded items. Most super markets will issue you a card that entitles you to discounts you won't get without the card. Get one and use it.