In a large skillet, heat the oil and butter over medium heat.
½ Tbsp light butter, ½ Tbsp extra virgin olive oil
Add the onion and cook about two minutes.
¼ medium onion chopped
Add the zucchini, tomato, corn salt & pepper. Mix all ingredients well.
2 medium zucchinis sliced, ½ large roma tomato chopped, ¼ cup corn kernels frozen or canned, ¼ tsp kosher salt, ⅛ tsp pepper or to taste
Cover, reduce heat to low, and simmer for 8 minutes. Remove from heat and sprinkle the shredded cheese.
½ cup shredded Chihuahua or light mozzarella cheese or any other melting cheese
Replace the cover on the skillet and allow to sit until the cheese melts, 2 to 3 minutes.
Serve warm and sprinkle with some of queso fresco
½ cup queso fresco crumbled