The ornamental design for a quinoapastamaker, as shown and described.
1.1 is a perspective view showing the quinoa pasta maker of my design;
1.2 is a front elevational view thereof;
1.3 is a rear elevational view thereof;
1.4 is a left side elevational view thereof;
1.5 is a right side elevational view thereof;
1.6 is a top plan view thereof; and
1.7 is a bottom plan view thereof.
The portions of the quinoa pasta maker shown in broken lines are included for the purpose of illustrating unclaimed portions of the quinoa pasta maker and form no part of the claimed design.