Transitioning into food

My daughter is going to be 12 months in 2 weeks.. I am currently breastfeeding every 2 hours but she only eats for about 5 minutes. I try giving her food throughout the day but most of just ends up on the floor. I’m a little stressed out about it, I don’t know if what I give her is healthy and I’m pretty sure I don’t give her enough food. This is what she usually eats throughout the day:

Breakfast: a sausage and some bagel (she doesn’t like eggs)

Lunch: rice and a sweet potato or a cheese quesadilla

Dinner: spaghetti/ Alfredo pasta

And I give her some fruit or avocado and cheese through out the day.. any advice on how you feed your LO and transitioning?