Heat butter and olive oil in a stainless steel or cast iron (not a non-stick) pan over medium-high heat.
Add zucchini when butter mixture is hot and zucchini sizzles when it touches. Cook, stirring occasionally, until the zucchini is lightly browned and tender.
Stir in the garlic, crushed red pepper, salt and pepper and cook until fragrant, about 30 seconds. Serve immediately and enjoy!