Simple Deconstructed Big Mac Bowl (All Flavors, No Bun!)

Name: Simple Deconstructed Big Mac Bowl (All Flavors, No Bun!)
Cuisine: American
Ingredients: 2 Bowls; For the burger bowl; 1 lb lean ground beef (90/10); 1 tbsp olive oil; 1 tsp garlic powder; 1 tsp onion powder; ½ tsp salt; ¼ tsp black pepper; 4 cups chopped romaine lettuce; 1 cup diced tomatoes; ½ cup diced pickles; ¼ cup finely diced white onion; 1 cup shredded cheddar cheese; Optional 2 tbsp sesame seeds; ½ cup mayonnaise; 2 tbsp sweet pickle relish; 1 tbsp yellow mustard; 1 tbsp white vinegar; 1 tsp paprika; ½ tsp garlic powder; ½ tsp onion powder; 1 tsp homemade taco seasoning; Large skillet; Mixing bowls; Wooden spoon or spatula