Beef Taco Casserole (Paleo/Whole30)

All of your taco favorites combined into one healthy and comforting beef taco casserole! Great for a satisfying meal, meal prep, and paleo and Whole30 approved!

1 pound ground beef
1/2 medium yellow onion, diced (about 1 1/2 cups/175 grams)
2 large bell peppers, diced (4 cups/500 grams)
3 packed cups kale, roughly chopped (90 grams)
1 package Cece's Noodle Co. Sweet Potato Noodles (or 4 cups sweet potato noodles/300 grams)
2 cups cherry tomatoes, halved (300 grams)
1 1/2 tablespoons taco seasoning, divided
1 1/4 cup salsa, divided
1/2 cup mayo
optional toppings: avocado, cilantro, salsa, hot sauce...

Preheat oven to 375 degrees Fahrenheit and grease a large baking dish.
In a large sauté pan, add beef and cook for 3-4 minutes until slightly browned. Add onion and 1/2 tablespoon taco seasoning and sauté for 2 more minutes. Add peppers, kale, remaining taco seasoning, and salt and pepper and sauté for 2-3 more minutes. Turn off heat and mix in sweet potato noodles and cherry tomatoes. Transfer mixture to the baking dish, leaving behind the grease.