24 Holiday Casseroles No One Would Guess Were Healthy

Spaghetti Squash Meatball Casserole

One of our favorite comfort food dinners is spaghetti and meatballs. We’re crazy about this lightened-up, healthier version featuring so many veggies. The same beloved flavors with more nutritious ingredients! — Courtney Stultz, Weir, Kansas

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New England Lamb Bake

This dish is hearty and perfect for warming up on a chilly winter evening. The aroma is almost as delightful as the dish itself. —Frank Grady, Fort Kent, Maine

Mushroom Penne Bake

This is an easy, hearty and delicious meal for a chilly evening! Its cheesy goodness will have you going in for seconds. Serve with salad and garlic bread. —Sue Aschemeier, Defiance, Ohio

Rustic Vegetable Frittata

I love that this veggie-loaded frittata combines seriously nutritious ingredients into a filling dish I can serve as breakfast, lunch or dinner—and is still delicious even as leftovers! —Deborah Jamison, Austin, Texas

Vegan Spaghetti Squash with Balsamic Vegetables

The veggies can be prepared while the squash is in the microwave, so I can have this satisfying low-carb and low-fat vegan spaghetti squash recipe on the table in about half an hour. —Deanna McDonald, Grand Rapids, Michigan

Herb Breakfast Frittata

I came up with this recipe on a snowy day by using what I had in the fridge. Yukon Gold potatoes give this frittata a comforting bottom crust. —Katherine Hansen, Brunswick, Maine

Zucchini Lasagna

We plant zucchini every year and always seem to have more than we can use! This hearty zucchini lasagna is a delicious way to use an abundant crop. —Charlotte McDaniel, Williamsville, Illinois

Sausage Tortilla Breakfast Bake

This casserole is perfect for a special brunch. It combines the spices of the Southwest with the comfort of a hearty breakfast. You can spice it up by adding cayenne and hot peppers, or mellow it by replacing the tomatoes and green chiles with mild salsa. It’s versatile and easy—no wonder it’s a longtime family favorite. —Darlene Buerger, Peoria, Arizona

Sweet Corn and Potato Gratin

This tasty potato gratin side dish combines great garlic and onion flavor, and kids love the nice crispy topping, too! —Jennifer Olson, Pleasanton, California

Frittata Florentine

My family is all about brunchy meals like this gorgeous Italian omelet. Lucky for us, it’s loaded with ingredients we tend to have at the ready. —Jenny Flake, Newport Beach, California

Mushroom Turkey Tetrazzini

This creamy, comforting casserole makes a fantastic way to use up that leftover Thanksgiving turkey. And it’s a real family-pleaser! —Linda Howe, Lisle, Illinois.

Spaghetti Squash Casserole Bake

One of our daughters shared this recipe along with squash from her first garden.—Glenafa Vrchota, Mason City, Iowa

Smoked Salmon Quiche

My son fishes for salmon on the Kenai River in Alaska and smokes much of what he catches. My mother passed this recipe on to me to help me find new ways to cook with salmon. Regular salmon also works in this quiche, but the smoked flavor can't be beat! —Rose Marie Cherven, Anchorage, Alaska

Turkey Spaghetti Casserole

My mom made this creamy and comforting dish while I was growing up. Whenever I have leftover chicken or turkey, I look forward to making this simple yet tasty meal. —Casandra Hetrick, Lindsey, Ohio

Calico Pepper Frittata

For a dish that fits any meal, you can’t beat the frittata. We add red and green peppers and use the stovetop instead of the oven. —Loretta Kelcinski, Kunkletown, Pennsylvania

Roasted Vegetable Strata

With the abundance of zucchini my family has in the fall, this is the perfect dish to use some of what we have. Cheesy and rich, the warm, classic breakfast dish is sure to please! —Colleen Doucette, Truro, Nova Scotia

Basil Corn & Tomato Bake

I think this is the ultimate dish to make when sweet Jersey corn is in season. Combined with tomatoes, zucchini and basil, it makes for a spectacular side for brunch, lunch or dinner. —Erin Chilcoat, Central Islip, New York

Sunday Brunch Egg Casserole

My favorite brunch dish got a makeover with egg substitute and lower-fat cheese. The lightened-up version still tastes delicious, but it won't weigh you down. —Alice Hofmann, Sussex, Wisconsin

Artichoke Ratatouille Chicken

I loaded all the fresh produce I could find into this speedy chicken dinner. Serve it on its own or over pasta. —Judy Armstrong, Prairieville, Louisiana

Creamy Skinny Pasta Casserole

Baked pasta is a favorite potluck dish, so I altered some of the ingredients in my traditional recipe to make it lower in calories. Try this healthy pasta recipe with ground beef, too! —Andrea Bolden, Unionville, Tennessee

Slow-Cooker Frittata Provencal

This recipe means that a delectable dinner is ready when I walk in the door from work. The meatless slow-cooker meal also makes an elegant brunch for lazy weekend mornings. —Connie Eaton, Pittsburgh, Pennsylvania

Black Bean & White Cheddar Frittata

This is one of my favorite comfort foods for breakfast or even a quick dinner. I like to make it with lime salsa. But if you're looking for something with more kick, use hot salsa or add some chipotle pepper. —Aysha Schurman, Ammon, Idaho

Colorful Pepper Frittata

Our taste testers loved this fluffy breakfast packed with three kinds of bright sweet peppers and minced fresh basil. It’s filling and tasty, full of fresh flavors to start the day. —Jessie Apfe, Berkeley, California

Chicken Brunch Bake

Chunks of tender chicken add heartiness to this appealing brunch casserole. This was my son's favorite hot lunch meal from high school. —DeLee Jochum, Dubuque, Iowa