The first objective of this study was to evaluate the protein quality of raw and processed legumes obtained by different processes used to remove the non-nutritive factors. In this sense, lupin seeds (Lupinus angustifolius L. var. Troll and var. Emir) were subjected to alcoholic extraction while pigeon pea seeds (C. cajan L. var. Aroito) were processed by fermentation and germination. The second objective was to study the effect of semolina supplementation with the processed legume flours on protein quality of pasta. For protein quality evaluation, amino acid composition and chemical score (CS) were determined in raw and processed legume flours as well as cooked semolina pasta supplemented and non-supplemented with processed legumes.