Step 1

Heat olive oil, garlic, and lemon zest in a large skillet on medium until beginning to brown, about 1 min.

Step 2

Add salsa and tomato sauce and bring to a simmer. Nestle shrimp in the salsa mixture and cook, covered, 3 min.

Step 3

Fold in spinach and cook until beginning to wilt and shrimp are opaque throughout, 1 to 2 min. more.

Step 4

Sprinkle with feta and serve with flatbread if desired.