Tons of comments already in the direction of 'eat less' and 'exercise more'. Of course. One thing I've found extremely helpful is to cook more! WFH is amazing for this. If you can find 15 minutes of meeting time throughout the day where you aren't an active speaker, you can chop vegetables or do dishes for lunch and dinner.
Back to the primary topic: cooking your own meals makes 'eating less' a matter of dialing in the portion sizes over time. I eat ~110g of pasta, or 0.8 cups of rice, or similar, and about 0.3-0.5 lb of protein, and about 1-1.5 vegetables per meal. Overall, I eat two meals like this, black coffee, a breakfast bar, and a snack, which puts me at 2000-2500 cal.
Now, on to a weird tip: meal planning! What a fun mix of intuition and ideas from operations research.
Back to the primary topic: cooking your own meals makes 'eating less' a matter of dialing in the portion sizes over time. I eat ~110g of pasta, or 0.8 cups of rice, or similar, and about 0.3-0.5 lb of protein, and about 1-1.5 vegetables per meal. Overall, I eat two meals like this, black coffee, a breakfast bar, and a snack, which puts me at 2000-2500 cal.
Now, on to a weird tip: meal planning! What a fun mix of intuition and ideas from operations research.