Add the garlic, zucchini, tomatoes, and corn to a large cast iron skillet set over medium heat along with the olive oil. Add the cumin, salt, and pepper to the skillet stirring together until evenly combined.
1 tbsp extra virgin olive oil, 4 cloves garlic, 1 medium zucchini, 3 roma tomatoes, 1 cup frozen corn kernels, 1 tsp ground cumin, salt and pepper
Sauté, stirring often, until the tomatoes have cooked down and most of the moisture has evaporated. Remove from heat and set aside. Sprinkle the cheese evenly out overtop.
1/2 cup shredded Monterrey jack cheese
Break the eggs into a mixing bowl, then add with the milk. Whisk together until they're both evenly combined.
6 large eggs, 1/2 cup milk
Once most of the juices have evaporated from the vegetables in the skillet pour the egg mixture evenly out overtop. Agitate the egg mixture in the skillet to get it under and all around the veggies.
Bake at 350° for 35- 40 minutes, until puffed and golden brown. Perform a toothpick test to make sure it's set.
Remove the frittata from the oven and let it rest for 5 full minutes. Slice, serve warn, and enjoy!