Guiltless Zucchini Marinara Subs

Time: 20 minutes, start to finish
Yield: 6 servings
Recipe adapted from Real Mom Kitchen

5 small zucchini, chopped
1 small onion, diced
2 cloves garlic, chopped
1 T olive oil
salt and pepper
1/2 t Italian seasoning
1 C marinara sauce (I used Prego)
6 crusty buns
1 1/2 C mozzarella cheese, grated
1/2 C parmesan cheese, grated

1. Grab 5 small zucchini and chop them into 1 inch pieces. 
2. Chop 1 onion and 2 cloves of garlic. 
3. Heat a large skillet up over medium high heat. Add 1 tablespoon of olive oil into the pan. Add the veggies and let them cook until crisp tender. Should only take about 10-15 minutes. 
4. Set you oven to broil. 
5. Grab 6 crusty buns and slice them in half, length wise. Line a large cookie sheet with tin foil and lay them out onto it. 
6. Carefully place about 1/4 to 1/3 cup of mozzarella cheese on top. 
7. Pop them into the oven and allow the cheese to melt and the edges of the bun to get crisp. Keep a close eye on them, it will only take a couple of minutes. 
8. When your veggies are crisp tender add 1/2 teaspoon Italian seasoning...
and 1 cup marinara sauce. (I am aware that the marinara sauce  above is only 3/4 of a cup...I ended up adding a bit more later. Just trust me...1 cup will do you right. If you would like more saucy-ness, feel free to add more.)
9. Grab the heavenly, cheesy subs and pile on the yummy zucchini filling. Load it down, man. This is the guiltless part. I think I read somewhere that zucchini only has 10 calories per 500 pounds. At least, I think I read that somewhere.  Ok, so I maybe I just wish that were the case. Let's just suffice it to say, zucchini is low cal. Hallelujah. :) 
10. Sprinkle each sub with a bit of Parmesan cheese, baby and dig in.