Method:
Cut tough end stems off collard greens. Rinse leaves and gather them together into 2 piles. Take each pile and roll it tightly. Cut them into thin strips crosswise. You should have about 8 cups.
Heat oil and butter in a large, heavy skillet over medium heat. Sauté shallot with garlic, stirring often, until they are lightly browned, about 3 minutes. Add greens and salt and pepper. Cook, stirring often, for about 5 minutes or until greens are tender but bright green. If necessary, cover with a lid and cook an additional couple of minutes to tenderize greens.