It was a Tuesday evening, and the rain was pouring down outside. I had a pack of beautiful ribeye steaks sitting on the counter. I really wanted that charred barbecue flavor, but my patio grill was soaking wet. That is exactly when I decided to unbox my new ninja foodi dg551. I had heard so much hype about this indoor gadget.

I needed to know if it could actually replace the real thing. Could an electric appliance really mimic a propane or charcoal fire? I cleared a space on my counter and plugged it in. This article shares my personal journey and honest thoughts on the ninja foodi dg551 after using it for a month.
Unboxing the Ninja Foodi DG551 Smart XL
The first thing I noticed was the size. This machine is substantial. It looks sleek with its stainless steel finish and black accents. The ninja foodi dg551 claims to be an “XL” model, and it certainly lives up to that name. It took up a good chunk of my prep space, but it looked professional.
Inside the box, I found the main unit, a grill grate, a crisper basket, and a cooking pot. There was also a smart thermometer probe tucked on the side. Everything felt heavy and durable. I felt like I was upgrading my kitchen just by setting up the ninja foodi dg551 on my counter.
Testing the Smart Cook System
I am terrible at guessing when meat is done. I usually slice into a steak to check, which lets all the juices run out. This is where the ninja foodi dg551 truly shines. It comes with a Smart Cook System that takes the guesswork out of grilling. You just plug the probe into the side of the unit.
I inserted the probe horizontally into the thickest part of my ribeye. I selected the “Beef” setting and chose “Medium Rare” on the display. The ninja foodi dg551 alerted me exactly when to flip the meat and when to remove it. It even has a rest timer to ensure the juices settle perfectly.
Does the Ninja Foodi DG551 Really Grill?
This was the big test. I preheated the grill to the “Max” setting. The display told me to add food after about ten minutes. When I placed the steaks on the heavy grate, I heard a loud, satisfying sizzle. The cyclonic air technology inside the ninja foodi dg551 moves hot air around the food very fast.
The result was shocking. I had legitimate grill marks on both sides of the steak. The fat had rendered down perfectly, and the edges were crispy. My family could not believe I cooked this indoors. The ninja foodi dg551 delivered that authentic char-grilled flavor without the hassle of charcoal.
Air Frying Capabilities
This appliance is a 6-in-1 multitasker. I decided to make sweet potato fries to go with the steak. I swapped the grill grate for the crisper basket. The ninja foodi dg551 acts as a powerful air fryer with a huge capacity. I dumped a whole bag of frozen fries into the basket.
They came out golden brown and crunchy. I used virtually no oil, which made me feel better about the meal. The air flow is strong, so everything cooks evenly. You do not have to shake the basket constantly like with smaller fryers. The ninja foodi dg551 handles side dishes just as well as proteins.
Managing Smoke in the Kitchen
I live in a place with very sensitive smoke detectors. Cooking steak at 500 degrees usually sets them off. I was nervous about using the ninja foodi dg551 at such high heat. However, the unit has a splatter shield that protects the heating element.
I am happy to report that my alarm stayed silent. There was barely any smoke visible in the kitchen. The cool-air zone reduces smoke production significantly. Using the ninja foodi dg551 is a clean experience compared to a smoky cast iron pan on the stove.
Cleanup and Maintenance
We all hate washing dishes after a big meal. The good news is that the accessories are ceramic-coated and nonstick. I let the parts cool down while we ate dinner. When I went to wash them, the grease wiped right off the ninja foodi dg551 grate.

You can also put the pot, grate, and basket in the dishwasher. I usually hand wash the probe and the main unit exterior. Keeping the splatter shield clean is key for smoke control. The easy cleanup makes me want to use the ninja foodi dg551 every single night.
Comparison: Ninja Foodi DG551 vs. Standard Grill
| Feature | Standard Ninja Grill | Ninja Foodi DG551 (XL) |
| Capacity | 4 Burgers | 6 Burgers |
| Smart Probe | No | Yes (Included) |
| Doneness Settings | Manual check | 9 Automations |
| Grill Grate Temp | Up to 500°F | Up to 500°F |
| Smoke Control | Good | Excellent |
As you can see, the upgrade is worth it for the probe alone. The extra space in the ninja foodi dg551 is also a lifesaver for meal prepping. I can cook lunch for the next three days in one batch. It saves me so much time during the busy work week.
Cooking Frozen Foods
One night I forgot to defrost chicken breasts. I was about to order pizza, but then I remembered a feature. The ninja foodi dg551 claims to cook food from frozen to char-grilled in under 25 minutes. I was skeptical, but I gave it a try.
I put the rock-hard chicken on the grill. The circulating heat thawed and cooked the meat simultaneously. It was fully cooked and juicy on the inside. The ninja foodi dg551 saved dinner that night. This feature is amazing for anyone who forgets to prep meals ahead of time.
Pros and Cons
Here is a quick breakdown of my experience:
Pros
- Excellent searing and grill marks.
- Smart probe ensures perfect doneness.
- Huge capacity fits family-sized meals.
- Very little smoke produced.
- Dishwasher safe parts.
Cons
- Takes up a lot of counter space.
- The fan can be a bit loud.
- It is heavy to move around.
Is the Ninja Foodi DG551 Worth the Price?
This appliance is an investment. It is not the cheapest gadget on the market. However, think about how often you will use it. Since I got the ninja foodi dg551, I have used it almost daily. It roasts veggies, bakes cakes, and dehydrates fruit.
I hardly use my big oven anymore. It heats up faster and uses less energy. If you love grilling but deal with bad weather or lack outdoor space, the ninja foodi dg551 is essential. It brings the joy of a cookout right into your kitchen.
Final Verdict
After a month of testing, I am keeping this machine on my counter. It delivers on its promises. The food tastes amazing, and the process is effortless. The ninja foodi dg551 has earned its spot as my favorite kitchen tool. It turns an average Tuesday night dinner into a steakhouse experience.

Expert Insights FAQ
Does the Ninja Foodi DG551 produce a lot of smoke?
No, it is designed with a smoke control system. The splatter shield and cool-air zone keep smoke to a minimum, even when grilling meat at high temperatures.
Can I put frozen meat directly in the DG551?
Yes, you can. The unit is powerful enough to cook frozen foods thoroughly. It transforms frozen chicken or burgers to char-grilled in about 25 minutes.
Is the Ninja Foodi DG551 difficult to clean?
Cleaning is very easy. The grill grate, crisper basket, and cooking pot are ceramic-coated and nonstick. They are also dishwasher safe for quick cleanup.
How many burgers can fit on the Ninja Foodi DG551?
The DG551 is the XL model, so it has a large capacity. You can fit up to 6 steaks or 24 hot dogs on the grill grate at one time.
Does the DG551 come with the temperature probe?
Yes, the DG551 Smart XL model includes the Foodi Smart Thermometer. This probe plugs into the unit to monitor internal food temperature for perfect results.



