01 -
Preheat oven to 175°C. Lightly grease a 23x33cm baking dish.
02 -
In a large skillet set over medium heat, brown the ground beef. Add diced onion, red bell pepper, and green bell pepper; sauté until the vegetables are softened, about 5 minutes. Stir in drained diced tomatoes with green chilies and taco seasoning, then simmer for 5 additional minutes. Season to taste with salt and black pepper. Remove from heat.
03 -
Press the biscuit dough evenly into the base of the prepared baking dish, pinching seams to form a unified crust. Pre-bake for 8 minutes until the surface is slightly set but not fully cooked.
04 -
Mix sour cream, mayonnaise, and ranch seasoning in a bowl until smooth and well blended.
05 -
Spread the cooked beef mixture evenly over the pre-baked biscuit crust. Top with the creamy ranch mixture, smoothing gently over the beef. Sprinkle shredded cheddar and Monterey Jack cheeses over the entire surface.
06 -
Bake the assembled dish uncovered for 25 to 30 minutes, or until bubbling and golden brown. Allow to rest for 5 to 10 minutes before slicing. Garnish with chopped fresh parsley or cilantro as desired.