One Pan Mustard Chicken and Veggies: 30 Minutes, Whole30 & Low-Carb

INGREDIENTS

1 lb

chicken breasts

cups, loosely packed, asparagus with stems removed and cut in thirds

and 1/2 cups cherry tomatoes, sliced in half or kept whole

1 cup

sliced mushrooms

1 cup

diced white onion

2 tbsp

dijon mustard

1 tbsp

olive oil, divided

1 tbsp

balsamic vinegar

1 tbsp

minced garlic, divided

1 tbsp

rosemary

1 tsp

salt

1/2 tsp

pepper