Gonna second the recommendation of Universal Bread. Best baguette outside of Portland. Just get there early as they sell out regularly.

Other good food in the area:

Big G’s in Winslow for giant, unique sandwiches.

Meridians in Fairfield for well-executed upscale gastropub type fare.

Buen Apetito for reliable Mexican food. Some great salsas there.

Most places in the area make reasonably decent food, but you’re also only 25 minutes from Augusta/Hallowell/Gardiner for better quality & a lot more variety.

Like, Jewel of India is passable for curry, but you can do way better by driving down to Mughal Palace in Chelsea.