If you find turnips with their greens still attached at your farmers' market, snatch them up for this healthy vegetable recipe. Otherwise, spinach makes a good sub for the turnip greens.
Heat oil and garlic in a large skillet over medium heat until fragrant, 1 to 2 minutes. Add turnips, water, lemon juice and 1/4 teaspoon salt. Cover and bring to a boil over high heat. Reduce heat to a simmer and cook until barely tender, about 10 minutes.
Add greens and cook, uncovered and stirring occasionally, until the liquid has evaporated and the turnips are very tender, 10 to 15 minutes. Add more water, 1/4 cup at a time, if the greens begin to stick before the turnips are tender.
Sprinkle the vegetables with flour, increase heat to medium and cook, stirring, for 30 seconds. Add milk, nutmeg, white pepper and the remaining 1/4 teaspoon salt. Cook, stirring, until the sauce is thick enough to coat the back of a spoon, 2 to 3 minutes. Serve topped with the reserved lemon zest.
1 vegetable, 1/2 whole milk, 1 fat