Geez, is 1500 calories the new 1200 calories? I see that number being suggested all over the place. I mean, it’s a definite improvement over 1200, but there’s no one number of calories that works for everyone. It all depends on your age, gender, height, weight, and activity level, which varies widely from person to person. 1500 is not the magic number here – there is no magic number.
I find it difficult to answer questions like this when the information I mentioned is not provided. What might work nicely into one person’s diet might not be good for another. Knowing your daily calorie goal would be a nice start, as would any goals you have regarding carbs, sodium, etc.
Now that that’s out of the way, here’s my answer: If you can stop at Subway, order and wait for them to make your breakfast, you have enough time to eat at home. Eating at home is always preferable because you know exactly what’s going into your meal. Subway may be better than some other fast food joints, but it does tend to include more carbs than is really necessary.
If you are eating 1500 calories per day, 360 calories is fine for breakfast. My breakfast and lunch adds up to about 400 calories each, along with a 500–600 calorie dinner and a snack or two. So, calorie-wise, it’s fine. However, not all calories are created equal.
Honestly, you could definitely do worse than a Subway breakfast, but eating out every day isn’t the best choice out there. It’s up to you.