Heat oil in a Dutch oven over medium heat. Add garlic and cook until beginning to brown, 1 to 2 minutes. Add spinach and toss to coat. Cover and cook until wilted, 3 to 5 minutes.
Remove from the heat and add lemon juice, pepper or salt and crushed red pepper. Toss to coat and serve immediately.
According to eating well site , this dish is only 68 calories!