Heat some olive oil over medium high heat I large pan. Add onions, bell peppers and then followed by zucchini or squash, jalapenos. Once these veggies are roasted, add in spinach, corn, beans, and all the seasonings. Taco seasoning has salt, so be careful when you add additional salt.
Add tomato paste too. Stir and mix everything. Leave the mixture aside.
In a skillet or tawa, spray some oil and lightly cook tortillas on each side. Either leave them on low heat and add the filling or if you are worries about burning the tortilla then remove them on a board and add filling.
Add some cheese on half side of the tortilla, add vegetable filling, and some cheese on top and fold it in half-moon.
Cook it for few seconds or until golden brown. Flip and cook on the other side too for additional 60 seconds.
Transfer it on a cooling rack, it will stay crispy rather than becoming soggy or soft.
Cut it into triangles and serve with accompaniments.