This study was carried out to optimize the compositions of red teff flour with malted soybean flour and papaya fruit powders for better nutritional quality and sensory acceptability of porridge. Total eleven formulations of the composite flours were determined using D‐optimal mixture design with the help of Minitab Version 16 Statistical Software. The three ingredients were considered in the ranges of 55%–70%, 20%–30%, 5%–15% for red teff flour, malted soybean flour, and Papaya fruit powder, respectively. The prepared porridge samples from formulations were analyzed for nutritional composition, antinutritional factors, and sensory acceptability. Results of the study showed the significant difference (p < .05) in ash, fat, fiber, protein, carbohydrate, energy, iron, calcium, zinc, β‐carotene, phytates, tannin, appearance, taste, mouthfeel, and overall acceptability as the composition of ingredients were changed. The overall optimum point was found in a range of red teff flour (60%–70%), malted soybean flour (20%–27.5%), and papaya fruit powder (10%–12.5%). In conclusion, the present approach can help in improve infants dietary quality of complementary foods by developing nutritionally enhanced red teff‐based porridge used for intervention of malnutrition.

Purpose This paper aims to assess Food Variety Score (FVS), Dietary Diversity Score (DDS) and dietary quality of collected complementary foods consumed in Jimma town, southwest Ethiopia. Design/methodology/approach Multi-stage stratified simple random sampling method was used to identify 384 children who were between 6 to 24 months of age living in Jimma town, Ethiopia. FVS and DDS were assessed based on 24 h recall method. Aliquot of infant’s diet samples were collected from randomly selected 30 household mothers feeding to 6-24 months aged children, and they are combined to get 15 samples by enquiring the ingredients similarly used in preparation. The major nutrients, anti-nutrients were determined with standard procedures. Further, nutrient adequacy and mean adequacy were determined for collected samples. Findings Results showed that mean FVS was 7.14 ± 4.07 (range 0 to 18) and DDS was 3.44 ± 1.75 (range 1 to 8). Consumption of diversified diet among the studied population significantly associated with residence areas of children’s (p = 0.001), age of the care taker (p = 0.001), occupation of care takers (p = 0.001), monthly income (p = 0.001), average money spent on food purchase per month (p = 0.001). Average mean adequacy of macronutrients (crude protein, crude fat and carbohydrate) was observed as 0.81, micronutrient (Fe, Ca, Zn) mean adequacy was 0.49 and Vitamin A adequacy was 0.34 for the complementary foods. All the complementary foods were reported mean adequacy of < 1 for macro and micro nutrients. Originality/value Studies on dietary diversity and dietary quality of the complementary foods were not documented in Jimma town, Ethiopia. The results of this study are highly useful to understand the complementary foods consumption pattern particularly in dietary diversity and food variety. Moreover, results obtained on dietary quality are very useful to recommend further development in complementary food preparations in the study area.