01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper.
02 - In a large bowl, mix grated carrots, zucchini, diced red bell pepper, peas, and chopped red onion.
03 - Incorporate rolled oats, whole wheat flour, baking powder, salt, black pepper, thyme, and garlic powder into the vegetable mixture and stir to combine.
04 - Fold shredded cheddar and grated parmesan cheese into the mixture evenly.
05 - Whisk eggs together with olive oil in a separate bowl, then pour into the vegetable and dry mixture, combining thoroughly.
06 - Spread the combined mixture evenly in the prepared baking pan.
07 - Bake for 30 to 35 minutes until set and golden on top.
08 - Allow to cool in the pan for 10 minutes before lifting out and slicing into bars; serve warm or at room temperature.