Add spinach, broccoli, diced tomatoes, 2 tbsps of the taco or enchilada seasoning, and 1 tsp crushed red pepper; stir and cook until liquid is evaporated, about 10-15 minutes.
Remove from heat.
Add ricotta and 1 cup Monterey Jack cheese; stir until well mixed.
Coat the bottom of a 9"x13" pan with 3/4 cup of tomato sauce.
Place 1/3 cup vegetable mixture in each tortilla; roll tightly and place seam side down, in pan.
In a small bowl, whisk 1 cup tomato sauce, 2 tbsps taco or enchilada seasoning, and 1/4 tsp crushed red pepper.
Pour over tortillas. Top with 1 cup Montery Jack cheese and cover with foil.
Bake for 25 minutes; remove foil and continue baking five more minutes.
Remove from oven. Let sit five minutes before serving.