Thoroughly wash and dry the summer squash. Using a vegetable peeler, slice or peel thin strips of zucchini and summer squash lengthwise, forming long strands of ribbons. Stop when the slices become nothing more than seeds. Alternatively, use a sharp knife or mandoline to slice the squash and zucchini into ¼-inch thin strips.
In a medium to large sauté pan, melt 1 tablespoon unsalted butter slowly over medium-low heat.
Once the butter has fully melted, add the ribbons of squash and zucchini, turn up the heat to medium-high, and sauté, gently stirring and flipping often until the squash is just crisp-tender, ~3-5 minutes.
Once tender, remove the pan from the heat and season with salt and pepper.
Notes
Vegetable Choice: Feel free to use only zucchini or only summer squash. You can also add 1-2 carrots, sliced into long, thin strips.Seasonings: Salt and pepper keep the dish kid-friendly, but feel free to finish with a bit of garlic powder, fresh herbs, or even a pinch of Cajun seasoning. Storage: Store the leftovers in an airtight container in the refrigerator for up to 3 days. Reheat by sautéing lightly in a dry skillet.