Substitutions

• Ground turkey: Ground turkey can replace the ground chicken in the same amount and will give you a similarly mild, tender meatball.
• Gluten free breadcrumbs: Use your favorite gluten free breadcrumbs in place of regular breadcrumbs if you need to keep the meal gluten free.
• Panko breadcrumbs: Panko can be used if that is what you have, though the meatballs may have a slightly looser and lighter texture.
• Part skim ricotta: Part skim ricotta works in place of whole milk ricotta if you want something a little lighter.
• Pecorino Romano: You can swap Pecorino Romano for Parmesan if you enjoy a sharper, saltier cheese flavor.
• Homemade ground chicken: Cut boneless skinless chicken breast into chunks and pulse it carefully in a food processor until it has the consistency of ground chicken.

Variations

• Spinach ricotta meatballs: Fold finely chopped cooked spinach into the mixture in place of some of the zucchini for another family friendly way to work greens into dinner.
• Extra cheesy meatballs: Add a little more mozzarella to the mixture or scatter mozzarella over the casserole before the final 10 minutes of baking.
• Spicy chicken meatballs: Add crushed red pepper to the chicken mixture or use a spicy marinara if the adults at your table like a little heat.
• Herb packed meatballs: Mix chopped parsley or basil directly into the chicken for a fresher, greener flavor throughout every bite.
• Creamy tomato version: Stir a few spoonfuls of ricotta into the marinara before pouring it over the meatballs for a softer, creamier tomato sauce.

Tips and Tricks

• Squeeze the zucchini gently: You want to remove enough water to prevent a loose meatball mixture while keeping some of the zucchini moisture that helps the chicken stay tender.
• Keep your hands damp: A little water on your palms makes the soft chicken mixture much easier to scoop and roll without sticking to your fingers.
• Do not overmix the chicken: Mix only until the ingredients are evenly combined because too much handling can make lean chicken meatballs firmer than you want.
• Keep the meatballs similar in size: Even portions cook at the same rate, which means you are less likely to end up with small meatballs drying out while larger ones are still finishing.
• Use a thermometer when possible: Ground chicken should reach 165°F in the center, and a quick temperature check takes the guesswork out of knowing when dinner is ready.
• Choose a marinara you already like: There are not many ingredients competing with the tomato sauce here, so a sauce that tastes good straight from the jar will give you a better finished casserole.

Serving Ideas

• Spaghetti or short pasta: Spoon the meatballs and marinara over your family's favorite pasta and let the sauce coat every piece.
• Creamy mashed potatoes: The soft potatoes catch the tomato sauce and melted ricotta beautifully, making the whole plate feel especially comforting.
• Steamed rice: Rice is a simple choice for nights when you want something filling without adding another complicated part to dinner.
• Roasted vegetables: Broccoli, green beans, zucchini, peppers, or cauliflower make an easy vegetable side while the meatballs stay the center of the meal.
• Garlic bread: A warm piece of bread is handy for soaking up the marinara and those creamy streaks of ricotta left on the plate.
• Simple green salad: Crisp lettuce with a bright vinaigrette gives you a fresh contrast to the warm cheese and tomato sauce.
• Meatball sandwiches: Tuck leftover meatballs into toasted rolls with marinara and mozzarella for a lunch that might get more excitement than the original dinner.

Storage and Make Ahead Tips

• Refrigerate leftovers promptly: Let the meatballs cool, transfer them with the sauce to an airtight container, and refrigerate them for up to 3 days.
• Freeze for another dinner: Store cooled meatballs with marinara in an airtight freezer container for up to 3 months.
• Thaw overnight: Move frozen meatballs to the refrigerator the night before you plan to serve them so they reheat more evenly.
• Reheat gently: Warm the meatballs with their sauce in a covered baking dish until hot throughout, or use the microwave for smaller portions.
• Prep the mixture early: You can shape the uncooked meatballs several hours ahead and keep them covered in the refrigerator until baking time.
• Save a few portions for lunch: Packing individual servings with rice or pasta makes the next day much easier, especially when mornings tend to get away from you.