Position rack in center of oven; preheat to 325°F. Coat a nonstick muffin tin generously with cooking spray (see Tip).
Heat a large nonstick skillet over medium-high heat. Add sausage and cook until golden brown, 6 to 8 minutes. Transfer to a bowl to cool. Add oil to the pan. Add mushrooms and cook, stirring often, until golden brown, 5 to 7 minutes. Transfer mushrooms to the bowl with the sausage. Let cool for 5 minutes. Stir in scallions, cheese and pepper.
Whisk eggs, egg whites and milk in a medium bowl. Divide the egg mixture evenly among the prepared muffin cups. Sprinkle a heaping tablespoon of the sausage mixture into each cup.
Bake until the tops are just beginning to brown, 25 minutes. Let cool on a wire rack for 5 minutes. Place a rack on top of the pan, flip it over and turn the quiches out onto the rack. Turn upright and let cool completely.
2 ripe pears, peeled, quartered and cored
2 pounds butternut squash, peeled, seeded and cut into 2-inch chunks
2 medium tomatoes, cored and quartered
1 large leek, pale green and white parts only, halved lengthwise, sliced and washed thoroughly
2 cloves garlic, crushed
2 tablespoons extra-virgin olive oil
1/2 teaspoon salt, divided
Freshly ground pepper, to taste
4 cups vegetable broth, or reduced-sodium chicken broth, divided
2/3 cup crumbled Stilton, or other blue-veined cheese
1 tablespoon thinly sliced fresh chives, or scallion greens
Preheat oven to 400°F.
Combine pears, squash, tomatoes, leek, garlic, oil, 1/4 teaspoon salt and pepper in a large bowl; toss to coat. Spread evenly on a large rimmed baking sheet. Roast, stirring occasionally, until the vegetables are tender, 40 to 55 minutes. Let cool slightly.
Place half the vegetables and 2 cups broth in a blender; puree until smooth. Transfer to a large saucepan. Puree the remaining vegetables and 2 cups broth. Add to the pan and stir in the remaining 1/4 teaspoon salt.
Cook the soup over medium-low heat, stirring, until hot, about 10 minutes. Divide among 6 bowls and garnish with cheese and chives (or scallion greens).