I was in Laura's quilt shop yesterday and there were tons of her quilts on display. With the exception of one that had a swirly pantograph, all the quilts were done with straight line quilting, quite close, 1/4" to a 1/2" at max, gridded, and it very much suited them.
Just use your walking foot, nothing else required, my favorite no stress way to machine quilt. Do a little sample work using the type of fabric and batting you used so you are happy with your stitch length and thread choice