Feeding 100 people at a wedding on a budget can be challenging, but it is definitely possible with some careful planning and creativity. One option is to opt for a buffet-style meal rather than a plated sit-down dinner. Buffets tend to be more cost-effective as they require less staff and allow guests to have more control over their portion sizes. Another approach is to choose affordable yet filling menu items, such as pasta dishes or vegetarian options, that can stretch your budget further. Additionally, focusing on seasonal and locally sourced ingredients can often be more affordable while still delivering delicious and fresh food. Lastly, consider asking friends and family members if they would be willing to help with food preparation or contribute homemade dishes, as this can help reduce costs even further.