When I'm boiling the pasta I add the frozen peas for the last minute before I drain it.
My favorite is to use the spiral pasta, a can of tuna, and a cup of peas. I add celery sometimes because my husband likes it. Then I stir in a cup of Mayo (I use Veganaise) and 2 Tabblespoons of Bragg's liquid aminos. (Like soy sauce)
I got that out of one of Marilu Henner's cookbooks. She calls it TV Guide Tuna