Yes, you can. Instead of keeping records of your meal expenses and deducting the actual cost, you can generally use a standard meal allowance, which varies depending on where you travel. The deduction for business meals is generally limited to 50% of the unreimbursed cost.
It's entered in the Meals & Entertainment area. How to get to the area to enter your business expenses: While inside the software and working on your return, type Schedule C in the Search at the top of the screen (you may see a magnifying glass there). There will be a popup that says Jump to Schedule C. Select that to get to the general area.