Step-by-step instructions
- Preheat your grill to medium-high heat.
- Slice the tops and bottoms of the onions, peel them, and then cut them in half horizontally. Use a knife to remove the inner layers, creating a bowl-like shape.
- In a mixing bowl, combine ground beef, cooked macaroni, shredded cheddar cheese, crumbled bacon, diced onion, ketchup, mustard, salt, and pepper. Mix well.
- Stuff each onion half generously with the beef mixture, pressing it down firmly to ensure they’re filled.
- Wrap each stuffed onion half tightly in aluminum foil, making sure they are completely sealed.
- Place the foil-wrapped onion bombs on the grill and cook for about 20-25 minutes, turning occasionally.
- Carefully unwrap the onion bombs and grill them for an extra 5 minutes to achieve a nice char on the outer layer.
- Serve the hot onion bombs and savor the delicious flavors!
Best ways to enjoy it
These Loaded Bacon Mac Cheeseburger Stuffed Onion Bombs are best served straight from the grill, allowing everyone to savor the perfectly charred flavor. Pair them with a fresh garden salad or coleslaw for a well-rounded meal. You could also serve some garlic bread on the side to complement the rich flavors of the stuffed onions. Don’t forget a dipping sauce—perhaps ranch or a spicy aioli—to take it to the next level!
How to store
If you have leftovers, don’t worry! To store these onion bombs, let them cool completely first. Then, place them in an airtight container in the refrigerator, where they’ll stay fresh for up to three days. For longer storage, you can freeze them by placing them in a freezer-safe bag. Just make sure to separate them with parchment paper to avoid sticking. Reheat in the oven or on the grill for the best flavor retention.
Extra advice
- Cooking Tips: If the grill is busy with other items, you can also bake these onion bombs in a preheated oven at 375°F for about 30-35 minutes.
- Pro Tip: Precook the macaroni until it’s al dente, as it will continue to cook when stuffed inside the onions.
- Helpful Hint: Feel free to add in other ingredients like jalapeños for some heat or spices to elevate the flavor profile.
Creative twists
The beauty of this recipe lies in its versatility. Try different types of cheese, like pepper jack for a kick or mozzarella for creaminess. You can also experiment with various meats such as chicken or sausage, or go vegetarian with black beans or quinoa. Top with a dollop of sour cream or avocado slices for a refreshing touch, and serve them on game day or at your next neighborhood cookout for a variation that everyone will love!

FAQ
Can I make these onion bombs in the oven instead of the grill?
Absolutely! You can bake them in a preheated oven at 375°F. Just adjust the cooking time to around 30-35 minutes, until the onions are tender.
What if I don’t have yellow onions?
While yellow onions offer the best taste for this recipe, you can substitute them with sweet onions or even large white onions if needed.
How do I reheat leftovers safely?
Simply place the leftovers in an oven-safe dish and reheat at 350°F for about 15-20 minutes or until heated through. Ensure they reach an internal temperature of 165°F for safety.
Whether you whip these up for a casual dinner or a special gathering, Loaded Bacon Mac Cheeseburger Stuffed Onion Bombs offer comfort food at its finest!






