First time for everything. I published a knitting pattern for a Minion Beanie on Craftsy.com. The beanie is knitted flat and then sewn up the back. It can be made with scrap amounts of yarn in any weight (just add more strands if using a lighter weight yarn to get close to worsted weight). The ear flaps are lined. Each ear piece is knitted first followed by the main body.
The Minion eye is crocheted and added at the end. You can make more than one eye, if desired. Recommend circular knitting needles but they aren't required. (Note: pattern is knitted flat.)