1 stick butter, softened
1/2 c. peanut butter
1/2 c. sugar
1/2 c. dark brown sugar
1 egg
2/3 c. flour
1/4 tsp. baking soda
1 c. uncooked quick oats
1/2 c. M & M's

Blend butter, peanut butter, and sugars until creamy. Beat in egg, and add flour, soda, and oats. Stir in half of the M & M's.

Grease a 12 inch round glass pizza pan with vegetable spray or oil. Pat the dough in a circle to the edge of the tray.

Microwave at medium high (level 7) for 10 minutes, turning the pan 1/4 turn every 2 minutes. At 9 1/2 minutes, use the remaining candy pieces to decorate. Microwave an additional 1/2 to 1 1/2 minutes. Let cool before cutting and serving. Use colored icings to decorate, if desired.