Hot Veggie Subs

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Do you have any favorite restaurants where you always order the same thing? Generally speaking, I try to branch out and sample different dishes because I have a tendency towards menu FOMO. But when we go to Firehouse Subs my husband and I both always get the exact same thing. I order a beef and cheddar brisket on wheat, and he asks for a veggie sub on white, sans tomato. This is a surprising choice for him, as he can sometimes be somewhat suspicious of veggie based meals. But it turns out that he likes these sandwiches so much that when I suggested we add some new recipes to our meatless meal rotation he asked if I could perhaps mimic his favorite restaurant sub.

Challenge accepted.

After a little research and a few experiments, we settled on this recipe for what I call Hot Veggie Subs. It is now a staple in our meal plan, and I make it at least twice per month. It’s a great dish to add to a Meatless Monday rotation as well, since it’s fairly easy and inexpensive to make, and very satisfying and delicious. I also like these veggie subs for prepping ahead of time, because it’s easy to sautĂ© the vegetables and keep them in the fridge until you are ready to assemble the sandwiches.

Admittedly, this isn’t a very kid-friendly meal, unless your children are more advanced than mine. But it’s super easy to make a PB&J or a grilled cheese to go with them, meaning that both the kids and grown-ups get something tasty without a lot of extra effort. We usually pair it with chips or baked fries, and occasionally a pickle. And if you really want to replicate the sub restaurant experience I recommend following up with a chocolate chip cookie or two. Or three. This is a no-judgement zone.

sliced veggies in a cast iron skillet
sautéed veggies in a cast iron skillet
hot veggie subs
Hot Veggie Subs
Prep Time
10 mins
Cook Time
30 mins
 
Course: Main Course
Keyword: sandwiches, subs, veggies
Servings: 4
Ingredients
  • 2 bell peppers, thinly sliced
  • 1 medium vidalia onion, thinly sliced
  • 1 8 oz package baby bella mushrooms, sliced
  • 1 tbsp olive oil
  • salt and pepper to taste
  • 4 8 inch sub rolls
  • 8 tsp dijon mustard
  • 4 tbsp mayonnaise
  • 1 cup Italian dressing
  • 4 slices cheddar cheese, halved
  • 4 slices provolone cheese, halved
Instructions
  1. Add sliced peppers, onions, and mushrooms to a large skillet with the olive oil, salt, and pepper, and saute over medium heat until veggies are soft, about 20-25 minutes.

  2. While veggies are cooking, preheat oven to 350. Slice the sub rolls in half and place them on a baking sheet. Spread each with 2 tsp dijon mustard and 1 tbsp mayo*.

  3. When the veggies are soft, evenly divide among the four rolls and top with 1/4 cup Italian dressing and one slice each of cheddar and provolone cheese.

  4. Bake open faced for about 5 minutes, or until the cheese it melted and the bread is toasted. Put the top on the sub and serve hot.

Recipe Notes

* Adjust mustard and mayo according to taste. I tend to like a little more mustard but some people find it too strong.

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