Preheat the oven to 350 degrees F. Line the cookie sheet with parchment paper or lightly grease it with non-stick cooking spray.
Add the eggs, white sugar, and brown sugar to either a stand-up mixer bowl or a large bowl. Use the paddle attachment or an electric mixer. Mix until fully combined.
Next, add the salt, baking soda, vanilla, peanut butter and butter. Mix until well combined and creamy. It should be a light tan color.
Stir in the quick and old fashioned oats, M&M's, and chocolate chips until combined.
Scoop out the dough with either a cookie scoop or ice cream scoop depening on what size cookies you want. Top each cookie with extra M&M's and chocolate chips. If you want a flatter cookies press down just a bit with fingers.
Bake the cookies for 8-10 minutes in a preheated oven. Do not overbake them.
Let the cookies rest for two minutes on the cookie sheet before transferring to the cooling rack. Cool cookies completely. Store in an airtight container for up to four days.
Notes
Storage Notes:Keep cooled cookies in an airtight container on the countertop. Enjoy within four days for best moisture and texture. Freeze cooled cookies in a freezer friendly container. Use within four months for best results. Defrost on the countertop. Low FODMAP Notes:Low FODMAP ingredient information is based on the Monash University Food App and FODMAP Friendly App testing results.